Buffy Sanders is actually an in-joke to Buffy Summers, the title character from the television series Buffy the Vampire Slayer
, in which James Marster played "Spike".
Clips of music videos were featured from the upcoming Metropolis Mix collecton. Including Josh Kelly, and Breaking Benjamin.
Carrie Fisher is listed as Special Appearance By. James Marsters is listed as Special Guest Star.
At one point, Professor Fine tells Clark that "there's no such thing as vampires." This is an in-joke referring to the fact that James Marsters
is best known for playing the vampire Spike in Buffy the Vampire Slayer
John Schneider (Jonathan Kent), Annette O'Toole (Martha Kent), John Glover (Lionel Luthor) and Erica Durance (Lois Lane) do not appear in this episode.
(after Lana is thrown over some stairs)
Buffy: Oh. Didn't we tell you? You get to live forever.
Lana: (deviously) Cool.
Chloe: I got in on the ground floor of my dream. Okay, so it's actually the basement...
Clark: Costume party?
Chloe: It's the perfect cover for us to get in there and poke around.
Clark: I hate costumes.
Chloe: Working at the Daily Planet...it's always been my dream.
Kahn: Well we all have to wake up sometime, don't we, Sullivan?
During Chloe's interview with Khaun she does not show any signs of bite marks on her neck... Though she was bitten by Lana earlier on in the episode
Lex says that vampire bats were found in the cave in Smallville. Vampire bats are not native to North America, they are native to Southern America.