| Person: |
|
Characters |
Episodes |
| • Bruce Gordon (1) | played | Frank Nitti | 27 Episodes |
| • Frank Wilcox | played | Beecher Asbury | 18 Episodes |
| • Robert Bice | played | Captain Johnson / Lt. Hale Johnson | 17 Episodes |
| • Oscar Beregi, Jr. | played | Benny Benjamin / Joe Kulak | 8 Episodes |
| • Jason Wingreen | played | Turner / Captain Dorset / 2nd Hood / Phil "the Bartender" Benyas / Frank | 8 Episodes |
| • Grant Richards | played | Jerry Tomack / Harry Brooks / Frankie Resko / Nick Dolov / Joe Aiello / Arnie Retzik | 8 Episodes |
| • Frank DeKova | played | Louis "Little New York" Campagna / "Bugs" Donovan / Judge Foley / Gangster Dealing with Lepke / Anthony "Tough Tony" Lamberto / Lous Campagna | 7 Episodes |
| • John Duke | played | Milwaukee Minnelli / Marty / William "Bo" Nairins / Lefty Southern / Brikka / Sully / Frankie | 7 Episodes |
| • Herman Rudin | played | Tony "Mops" Volpe / Mace / Rosie / Bochek / Benny Rivas / Max Gort / Hood | 7 Episodes |
| • Nehemiah Persoff | played | Jake Guzik / Johnny Fortunato / Waxey Gordon / Mr. Jaeger | 6 Episodes |
| • Richard Reeves | played | Abe Landau / Hugger Davis / Levinsky / Truck Driver / Bartender / Loading Dock Foreman | 6 Episodes |
| • Harold Stone | played | Charles "Pops" Felcher / Tommy Karpeles / Barney Jarreau / Adam Stone / Louie "the Bear" Madikoff / Jules Flack | 6 Episodes |
| • Joseph Ruskin | played | Fred Metcalfe / Happy Levinsky / Alexander Stavro / Alexander Raeder / Lepke Buchalter | 6 Episodes |
| • Richard Bakalyan | played | Joe Courtney / Prisoner Who Stabs Capone / Monk / Benno / Lucky / Cully | 6 Episodes |
| • K. L. Smith | played | Detective Murphy / Javitt / Art Tenney / Jack McGurn / Bodyguard / Puffy Orcell | 6 Episodes |
| • Phillip Pine | played | Jack Zuta / Mike Marconi / Lenny Shore / Griff Darden / Whitey Gross | 5 Episodes |
| • Michael Constantine | played | Gino Carabello / Edmund Wald / Seth Otis / Marty Balter / Max Frivol | 5 Episodes |
| • Will Kuluva | played | Nero Rankin / Frank Genna / Renzo Rainieri / Max Turkin / Raymond "Goose" Gander | 5 Episodes |
| • Johnny Seven | played | Canello / George Davas / Frankie Fershman / Lefty / Murray Alpine | 5 Episodes |
| • Theodore Marcuse | played | Jack Curtiz / Oscar Symmes / Alex / The Man / Vince Bogan | 5 Episodes |
| • Joe De Santis | played | Daniel Oates / Louie Latito / Victor Salazar / Jake Szabo | 5 Episodes |
| • Carl Milletaire | played | Julius Scalmone / Nick Tomassi / Pete Konitz | 5 Episodes |
| • Robert Carricart | played | Lucky Luciano / Lepke Buchalter / Sam Weidman | 5 Episodes |
| • Joe Turkel | played | Loman / Gabo Karsh / Birdie Yates / Eddie Kobler / Garvin | 5 Episodes |
| • Gavin MacLeod | played | Artie MacLeod / Three-Fingered Jack White / Whitey Metz / Porker Davis | 5 Episodes |
| • Bernard Fein | played | Big Tim Harrington / Richie / Marty Wilger / Ed Harker / Louis Akers | 5 Episodes |
| • Stewart Bradley | played | Monk / Knuckles Nolan / Nails Hansen / Wally Corbin / Iggy Minter | 5 Episodes |
| • Dan Seymour | played | Sam Argus / Jake Kurowski / Cy Brenner / Wellman | 4 Episodes |
| • John Harmon (1) | played | Ed Johnson / Arno Schwager / Phil Grier / Hotel Clerk | 4 Episodes |
| • Richard Karlan | played | Needles Bledsoe / Danny Kurtz / Rudolph Krasna / Maury Brigger | 4 Episodes |
| • Vic Perrin | played | Robert Riordan / Inky Beggs / Arnie Falken / Parrot Krebs | 4 Episodes |
| • Don Gordon | played | Johnny Selkirk / Frankie Gruder / Vic Cassandros / John "the Cropper" Cropsie | 4 Episodes |
| • Olan Soule | played | Dr. Amos Hallet / Frank Casey / Smitty | 4 Episodes |
| • Cyril Delevanti | played | Newsboy / Newspaper Vendor / Men's Room Attendant / Flophouse Manager | 4 Episodes |
| • Robert Middleton (3) | played | Mayor Anton Cermak / Mayer Wartel / Barney Loomis | 4 Episodes |
| • Hugh Sanders | played | Parnell / Wiesbaden / Dr. Haskell / Detective | 4 Episodes |
| • Murray Hamilton | played | George Varsey / Michael Barrigan / Charley Mailer / Harry Dannigan | 4 Episodes |
| • Wolfe Barzell (1) | played | Jake Bradowski / Salvatore Sebastino / Lefty's Uncle / Max Weidman | 4 Episodes |
| • Edward Asner | played | Fedor Bartok / Jimmy Canada / Frank Benson | 4 Episodes |
| • Milton Selzer | played | Maxie Schramm / Jason Fiddler / Alan Sitkin / Harry Gordon | 4 Episodes |
| • Paul Sorenson | played | Convoy Truck Driver / Counterman at Diner / Harry / Angie | 4 Episodes |
| • Paul Bryar (1) | played | Urcel / Gangster / Captain Reardon / Detroit Council Member | 4 Episodes |
| • Ned Glass | played | Ed Keiffer / Art Reel / Max Riegel / Howie Reif | 4 Episodes |
| • George N. Neise | played | William Neuhauser / Ira Peterson / Archie Devlin | 4 Episodes |
| • Charles McGraw | played | Barney Bertsche / Johnny Torrio / Pete Kalik / Holly Kester | 4 Episodes |
| • Bruno VeSota | played | Reporter / Defense Attorney | 4 Episodes |
| • John McLiam | played | Rick Landy / Truck Driver / Priest / Trucker | 4 Episodes |
| • Frank Sutton | played | Benny Stryker / Smiley Barris / Angie Stazak / Davy McCain | 4 Episodes |
| • Allen Jaffe | played | Frankie / Gregory / Third Hood in Lineup / Nitti Hood | 4 Episodes |
| • Jay Adler | played | Georgie Kaufman / Sammy / Maxie / Louis Collings | 4 Episodes |
| • Thomas Nello | played | Paddy / Waiter / Willie / Manny | 4 Episodes |
| • Gene Roth | played | Lepke Buchalter / Weiss / Tony / Louis | 4 Episodes |
| • Antony Carbone | played | Forenzi / Dimitrios Spiros / Angelo Genna / Rudy Portuguese | 4 Episodes |
| • Eugene Iglesias | played | Tony Cestari / Emilio / George / Mendez | 4 Episodes |
| • Gene Coogan | played | Harrington's Hood / Gambler / Associate | 4 Episodes |
| • Al Ruscio | played | Frankie Yale / Gus Krelig / Denny Cole | 3 Episodes |
| • John Anderson (1) | played | George McPhail / Marlon Spencer / Victor Kurtz | 3 Episodes |
| • Robert Emhardt | played | Fred Stegler / Janos "Willie" Willinski / Sal Rudin | 3 Episodes |
| • Howard Culver | played | Smitty | 3 Episodes |
| • Lawrence Dobkin | played | Dutch Schultz | 3 Episodes |
| • Phyllis Coates | played | Renee Sullivan / Ellie Morley / Angela Lamberto | 3 Episodes |
| • Dabbs Greer | played | Thomas Randall / Agent Ned Ferber / Owen Braugher | 3 Episodes |
| • John Kellogg | played | Lucky / Lucky Quinn / Striber | 3 Episodes |
| • Lou Krugman | played | D'Andrea's Attorney / Hood / Monette | 3 Episodes |
| • Joseph Mell | played | Sidney Weinberg / Felix Levitan / Nitti Council Member | 3 Episodes |
| • Robert J. Wilke | played | Dutch Schultz / George "Bugs" Moran | 3 Episodes |
| • Booth Colman | played | Victor Bartok / Mike Pavanos / Nicholas Contine | 3 Episodes |
| • Cliff Carnell | played | Pete Gort / Dolph Cagle / Wally | 3 Episodes |
| • Penny Santon | played | Emily Brodowski / Mrs. Sarracino / Gio's Wife | 3 Episodes |
| • Raymond Bailey | played | John Carvel | 3 Episodes |
| • Claude Akins | played | Jake "Dodo" Ryan / Karl Hansa / Karl Schmidt / Vince Majesky | 3 Episodes |
| • Norma Crane | played | Mrs. Vittorini / Alice Diamond / Lily Dallas | 3 Episodes |
| • Henry Silva | played | Little Charlie Sebastino / Joker | 3 Episodes |
| • Linda Watkins | played | Madame Flora / Mrs. Murphy / Ada Spencer | 3 Episodes |
| • Baynes Barron | played | Muller / Brunner / Larry Rand / Rudy Mann | 3 Episodes |
| • Harry Dean Stanton | played | Piccolo / Moxie / "Blind" Newspaper Vendor | 3 Episodes |
| • Sam Gilman | played | Sheriff Lenny Parker / Barney Kyle / Charlie Sherman | 3 Episodes |
| • Addison Richards | played | William Adcock / Mayor Gautier / Harold Eshman | 3 Episodes |
| • Steve Gravers (1) | played | Tony Genna / Harry Tazik / Bertsche Henchman | 3 Episodes |
| • Harry Guardino | played | Frank O'Dean / Nick Moses / Johnny Templar | 3 Episodes |
| • Ford Rainey | played | Prisoner Run Over by Halloway / Julius Chavis / Lt. Roy Gunther | 3 Episodes |
| • Neville Brand | played | Al Capone | 3 Episodes |
| • Jack Elam | played | Nick Bravo / Stan Wilinski / Jug Alverson | 3 Episodes |
| • Ed Nelson | played | Marty Stokes / Johnny Preble / Marty Pulaski | 3 Episodes |
| • Hank Patterson | played | Wilkerson / Peterson / Charlie | 3 Episodes |
| • Malachi Throne | played | Barnett / Dancer / Duke Barker | 3 Episodes |
| • Byron Morrow | played | Williamson / Bureau Chief | 3 Episodes |
| • Marc Lawrence (1) | played | Luigi Renaldo / Mike Genna / Lew Cagan | 3 Episodes |
| • Gilbert Green | played | Phil Bogar / Martin Rawlings / Kurt Konig | 3 Episodes |
| • Jon Lormer | played | Clary / Finley Connors / School Superintendant | 3 Episodes |
| • Lewis Charles | played | Joe Donato / Joe Gianbatista | 3 Episodes |
| • Norman Alden | played | Barry Carlton / Nitti's Hood / John Henry Whitmore | 3 Episodes |
| • Vincent Barbi | played | Augie Epstein / Ike / Nitti Council Member | 3 Episodes |
| • Jack Warden | played | Lawrence "Larry" Halloran / Frank Barber / Otto Frick | 3 Episodes |
| • Ben Wright | played | Seth Gordon / Jacques Villon / John Wellin | 3 Episodes |
| • Bing Russell | played | Patrolman Pete Garrett / Frankie Brendon / Police Officer Cavanaugh | 3 Episodes |
| • Simon Oakland | played | Joe "Mr. Pal" Palakopolous / Pete "the Persuader" Kalmisky / Russ Bogan | 3 Episodes |
| • Eddie Firestone | played | Fred Noonan / Ernie Berrigan / Bitsy Wyler | 3 Episodes |
| • Roy Engel | played | Whelan / Fire Chief / Customer | 3 Episodes |
| • Russ Bender | played | George Cooper / Daniel Gosden / Arnold Wainwright | 3 Episodes |
| • Mike Kellin | played | Abe Garfinkel / Mig Torrance / Lou Mungo | 3 Episodes |
| • Paul Birch | played | Lt. Willard / Captain Browley / Frank Argos | 3 Episodes |
| • Russ Conway | played | Warden Hubbard / Harold Brookson | 3 Episodes |
| • Frank Puglia | played | Joe Flores / Carlo Feruzzi / Carlo Giovanni | 3 Episodes |
| • Telly Savalas | played | Wally Baltzer / Matt Bass / Leo Stazak | 3 Episodes |
| • Jerry Oddo | played | Willie Drummer / Fred Santos / Leo | 3 Episodes |
| • Paul Dubov | played | Charlie Bannion / Urcel / Greer | 3 Episodes |
| • Steven Geray | played | Eric Vajda / Marquis de Bouverais / Karl Reisling | 3 Episodes |
| • Paul Genge | played | Artie Bryson / Wally Jater / Guido | 3 Episodes |
| • Robert Ellenstein | played | Felix Burke / Kallinak / Peepers | 3 Episodes |
| • A. G. Vitanza | played | Mario Busso / Sarro / Cooker | 3 Episodes |
| • Francis DeSales | played | Captain Troy / D. A. Roger Hayden / Auditor | 3 Episodes |
| • George Cisar | played | Sherburn / Embry's Guard / Desk Sergeant | 3 Episodes |
| • Richard Carlyle | played | Lefty Gallagher / Everett Lafferty | 3 Episodes |
| • Vaughn Taylor | played | George Elias "Pa" Barker / Dr. Voyt / D. A. Harker Wade | 3 Episodes |
| • Arthur Kendall | played | Machine Gun Machen / Pedro Palmas / Monk | 3 Episodes |
| • Luther Adler | played | Gus Marco / Emile Bouchard / Charlie Zenko | 3 Episodes |
| • Lee Marvin | played | Nick Acropolis / Victor Rait / Mike Brannon | 3 Episodes |
| • Larry Breitman | played | Benny Crowe / Joey Loomis / Chestnut Vendor | 3 Episodes |
| • John Zaccaro | played | Andrews / Lou / Surigao's Hood | 3 Episodes |
| • Arnold Freeman | played | Weisman / Webster | 3 Episodes |
| • Arthur Malet | played | Brother Adam | 2 Episodes |
| • Peter Baldwin (1) | played | Arthur "Doc" Barker / Tom Patterson | 2 Episodes |
| • Stefan Gierasch | played | Cooker / Gil Kellerman | 2 Episodes |
| • Larry Gates | played | Julian Glass / Carl Arnold | 2 Episodes |
| • John Davis Chandler (1) | played | Sullivan's Hood / Machine Gunner | 2 Episodes |
| • Walter Burke | played | Herbie Snow / Harmon | 2 Episodes |
| • Leo Gordon | played | Whitey Deering / Pops Gantry | 2 Episodes |
| • Ray Walker | played | Kimmell / Bartender | 2 Episodes |
| • Adrienne Marden | played | Nurse / Mrs. McGonigle | 2 Episodes |
| • Percy Helton | played | Meyer / Jocko | 2 Episodes |
| • Virginia Christine | played | Stella Eden / Doris Mizo | 2 Episodes |
| • Ralph Moody | played | Landlord / Pettit | 2 Episodes |
| • Peter Mamakos | played | Gus Raddi / Sully | 2 Episodes |
| • John Beradino | played | Augie Viale | 2 Episodes |
| • Jack Reitzen | played | Vinnie Orcell / Mike | 2 Episodes |
| • William Challee | played | Mike Kilkenny / Jed Ryan | 2 Episodes |
| • Robert F. Simon (3) | played | Police Chief Towers / Homer S. Cummings | 2 Episodes |
| • Barbara Luna | played | Lucita / Magda Bartok | 2 Episodes |
| • H. M. Wynant | played | Joe Aiello / Boley Davis | 2 Episodes |
| • Joseph V. Perry | played | Cully Grice / Filomena | 2 Episodes |
| • John Daheim | played | Tom Jansen / Rocky Pearson | 2 Episodes |
| • Harry Shannon | played | Joe Patterson / Michael Shaw | 2 Episodes |
| • Frank Gerstle | played | Schultz Hood / Police Sergeant | 2 Episodes |
| • Joe Mantell | played | Giuseppe Zangara | 2 Episodes |
| • Bill Erwin | played | Auctioneer / Doctor | 2 Episodes |
| • Johnny Silver | played | Hood | 2 Episodes |
| • Sean McClory | played | Captain Stanwood / Vince O'Gara | 2 Episodes |
| • Hope Summers | played | Letta Hodges / Neighbor | 2 Episodes |
| • Michael Ansara | played | Charlie Steuben / Rafael Torrez | 2 Episodes |
| • Paul Langton | played | Bob Wheaton / Carl Edmunds | 2 Episodes |
| • Gail Kobe | played | Rosetta Zabo / Rita | 2 Episodes |
| • Michael Fox (1) | played | Lt. Miller / Bradley | 2 Episodes |
| • Russell Collins | played | Peabody / Hodges | 2 Episodes |
| • Robert Karnes | played | Owens / Harvey Sloane | 2 Episodes |
| • Edward Binns | played | Steve Ballard / Dr. Samuels | 2 Episodes |
| • Darryl Hickman | played | Phil Morrisey / Danny Madikoff | 2 Episodes |
| • Steven Hill (1) | played | Jack "Legs" Diamond / Joseph December, Jr. | 2 Episodes |
| • Martin Balsam | played | Arnold Justin / Benji Liemer | 2 Episodes |
| • Karl Swenson | played | Hans Dreiser / Stanley Zolinski | 2 Episodes |
| • Adam Williams | played | Lloyd Barker / Paul Meadows | 2 Episodes |
| • Ken Lynch (1) | played | Ted Newberry / Union Official | 2 Episodes |
| • James Flavin | played | Warden / Rocky Garver | 2 Episodes |
| • Collin Wilcox | played | Ann Gratzner / Francie Pavanos | 2 Episodes |
| • David White (1) | played | Archie Grayson / W. S. Andrews | 2 Episodes |
| • Ted de Corsia | played | Big Jim Harrington / Nate Stryker | 2 Episodes |
| • George Keymas | played | Nick Vascovich / Carl Danzig | 2 Episodes |
| • Alan Baxter | played | Harry Mailer / John Brecker | 2 Episodes |
| • Howard Caine | played | Edwin Ballin / Blinky Rodrigues | 2 Episodes |
| • Bernard Kates | played | Davie / Mr. Lee | 2 Episodes |
| • Harry Swoger | played | Battler / Chez Goshen | 2 Episodes |
| • John Larch | played | Bryan "Bull" Hanlon / Charlie Radick | 2 Episodes |
| • Eduardo Ciannelli | played | Joe Genna / Gregory Pindar | 2 Episodes |
| • Christopher Dark | played | Sheik Humphries / Arno Beale | 2 Episodes |
| • Jeremy Slate | played | Red Foran / Elroy Dahlgren | 2 Episodes |
| • Virginia Capers | played | June | 2 Episodes |
| • Martin Landau | played | Jerry Fanning / Larry Coombs | 2 Episodes |
| • Woodrow Parfrey | played | Fred Myerson / Harold Farish | 2 Episodes |
| • Victor Buono | played | Melanthos Moon / Parnise Surigao | 2 Episodes |
| • Carroll O'Connor | played | Arnie Kurtz / Barney Lubin | 2 Episodes |
| • Pat Hingle | played | Mitchell Grandin / Barney Howe / Barney Retzik | 2 Episodes |
| • Lee Van Cleef | played | Frank Diamond | 2 Episodes |
| • Madlyn Rhue | played | Chickie Bernstein / Sally Karr / Karpeles | 2 Episodes |
| • Paul Richards | played | Sebastian / Lou Sultan | 2 Episodes |
| • Arlene Martel | played | Carla Patrone / Stella Giovanni | 2 Episodes |
| • Barbara Stanwyck | played | Lt. Agatha Stewart | 2 Episodes |
| • Vic Morrow | played | Phil Collier / Vince Shirer | 2 Episodes |
| • John Marley | played | Ed Carlton / Henny Weiser | 2 Episodes |
| • Norman Burton | played | Wally Dakin / Sully | 2 Episodes |
| • Mario Gallo | played | Chester / Manny Kravitz | 2 Episodes |
| • Val Avery | played | Johnny / Frankie Salinas | 2 Episodes |
| • George Murdock | played | Gus Dmytryk / Pete Topchinski | 2 Episodes |
| • Robert Cornthwaite | played | Wendell / Inspector Goodrich | 2 Episodes |
| • Buck Kartalian | played | Nate Stryker / Al Gross | 2 Episodes |
| • John Mitchum | played | Freddie / Brewery Worker | 2 Episodes |
| • Joe Di Reda (1) | played | Fred Barker / Rusty Miller | 2 Episodes |
| • Sheldon Allman | played | Louie / Harry Mastrogeorge | 2 Episodes |
| • Stanley Adams | played | Willie Weinberg / Max Posen | 2 Episodes |
| • Grace Lee Whitney | played | Penny / Fran | 2 Episodes |
| • Meg Wyllie | played | Mrs. Terranova / Mrs. O'Gara | 2 Episodes |
| • Peggy Ann Garner | played | Margaret Radick / Barbara Sultan | 2 Episodes |
| • Cliff Osmond | played | Barney Kova / Augie the Slob | 2 Episodes |
| • Mike Mazurki | played | Frankie Marlowe / Moose Tobin | 2 Episodes |
| • Bill Zuckert | played | Lou Tully / Vic | 2 Episodes |
| • Mort Mills | played | Lulu Rosenkrantz / Woody O'Meara | 2 Episodes |
| • Paul Barselou | played | Walter Hale / Map Store Owner | 2 Episodes |
| • Nita Talbot | played | Alice / Renee Grayson | 2 Episodes |
| • Lorna Thayer | played | Landlady / Connie Laverne | 2 Episodes |
| • Michael Hinn | played | Jethro / Sheriff | 2 Episodes |
| • Harry Bartell | played | Dr. Olsen / Schlessinger | 2 Episodes |
| • John Milford | played | Woody Lubick / Burt | 2 Episodes |
| • Than Wyenn | played | Frenchie LeBlanc / Martin Pegler | 2 Episodes |
| • Peter Falk | played | Duke Mullen / Nate Selko | 2 Episodes |
| • J. D. Cannon | played | Joey Lassater / Al Remp | 2 Episodes |
| • Virginia Vincent | played | Mona / Louise O'Hara | 2 Episodes |
| • Joseph Wiseman | played | Arnie Mendoza / Albert Maras / Russell Shield | 2 Episodes |
| • Jack Klugman | played | Morton Halas / Sollie Girsch | 2 Episodes |
| • Barbara Pepper | played | Landlady / Mrs. Littlesmith | 2 Episodes |
| • Tom Reese | played | George Summers / Sonny Dale | 2 Episodes |
| • John Wengraf | played | Manning Loder / Gus Kleeber | 2 Episodes |
| • Argentina Brunetti | played | Mrs. Cestari / Mrs. Swoboda | 2 Episodes |
| • Peter Whitney | played | Big Bill Swinney / Fat Augie Strom | 2 Episodes |
| • Herschel Bernardi | played | Julius Vernon / Benno Fisk | 2 Episodes |
| • Kevin Hagen | played | Swede Kelso / Jan Tobek | 2 Episodes |
| • Andrea Darvi | played | Theresa / Amy | 2 Episodes |
| • Jeanne Cooper | played | Fran Cagle / Belle Alpine | 2 Episodes |
| • Steve Cochran | played | Eddie Fletcher / Nate Kester | 2 Episodes |
| • Salome Jens | played | Eva Tobek / Marcie Remp | 2 Episodes |
| • Rip Torn | played | Harry Strauss aka Pittsburgh Phil / Johnny Mizo | 2 Episodes |
| • Ernest Sarracino | played | Tomasso Fellini / Tony Zagano | 2 Episodes |
| • John Larkin | played | Ray Quist / Phillip Hedden | 2 Episodes |
| • Don Diamond | played | George Keeley / Manager of Chuck-a-Luck Club | 2 Episodes |
| • Cloris Leachman | played | Billie Mailer / Julie Liemer | 2 Episodes |
| • Roy Thinnes | played | Denny Brannon / Red Thomas | 2 Episodes |
| • Richard Conte (1) | played | Arnie Seegar / Ira Bauer | 2 Episodes |
| • Mack Williams (1) | played | Judge / Doctor on Train | 2 Episodes |
| • George Lynn | played | Hood / Doctor | 2 Episodes |
| • Lovyss Bradley | played | Matron / Detox Ward Matron | 2 Episodes |
| • Vladimir Sokoloff | played | Stanley Tannenbaum / Sam | 2 Episodes |
| • Barry Morse | played | Michel Viton / Larry Bass | 2 Episodes |
| • Alan Dexter | played | Vince Farrell / Gerald Feeney | 2 Episodes |
| • Murvyn Vye | played | Lou Hyndorf / Mike Volney | 2 Episodes |
| • Alexander Lockwood | played | Professor Hinds / Dr. Burley | 2 Episodes |
| • David Brian (1) | played | Dink Conway / Brian O'Malley | 2 Episodes |
| • Betty Garde | played | Norma Guzik / Alice | 2 Episodes |
| • John Gabriel (1) | played | Dr. Daniel Gifford | 2 Episodes |
| • Frank London | played | Goldie Gold / Benny Marcus | 2 Episodes |
| • Dane Clark | played | Dr. Victor Garr | 2 Episodes |
| • Joseph Bernard | played | Solly Wilkes / Alvin Stryker | 2 Episodes |
| • Barnaby Hale | played | Ned Beemis / Owen Enters | 2 Episodes |
| • Lalo Rios | played | Tony Diaz | 2 Episodes |
| • Angela Clarke (2) | played | Catherine Chavis / Mrs. Santos | 2 Episodes |
| • Tony Barr | played | Tobias / Phil Aragon | 2 Episodes |
| • Paul Marin | played | Will Heffner / Sam Deroy | 2 Episodes |
| • Theona Bryant | played | Nurse / Lucille | 2 Episodes |
| • Carleton Young (2) | played | Levell / Inspector | 2 Episodes |
| • Edward Holmes (2) | played | Al / Colonel | 2 Episodes |
| • Jay C. Flippen | played | Al Morrissey / Big Joe Hovack | 2 Episodes |
| • Brooke Byron | played | Madame Amy / Mary LaRose | 2 Episodes |
| • Suzanne Storrs | played | Diana Carten / Dawn Dolan | 2 Episodes |
| • George Matthews (1) | played | Matt Malloy / Charlie Grach | 2 Episodes |
| • Robert J. Stevenson (4) | played | Jake Logan / District Attorney | 2 Episodes |
| • Jay Warren | played | Paolo Rienzi / Genardo DeMarco | 2 Episodes |
| • Ted Berger | played | Roley Sutton / Moxie Harris | 2 Episodes |
| • Paul Bruce | played | Levine | 2 Episodes |
| • Ellen Madison | played | Millie Joplin / Mrs. Henning | 2 Episodes |
| • Toni Tucci | played | Alma / Fay | 2 Episodes |
| • George Voskovec | played | Herman Kihn / Charlie Tarasovich | 2 Episodes |
| • Kenner G. Kemp | played | Police Commissioner / Gambler | 2 Episodes |
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