The Adventures of T-Rex

T-REX was a crime-fighting group of dinosaurs who moonlight as jazzers and comedians at a night club.
"The Adventures of T-Rex" is an American cartoon (albeit with Japanese character designs) from 1992. The story takes place in Rep City, your average American metropolis, except that it's populated by Dinosaurs. The main characters are five Tyrannosaurus brothers who usually work as stand-up comics at the Dragon Co. Nightclub. But when evil Big Boss Graves and his hench-reptiles threaten the city, the brothers put on armor and becomes the five-man Crime Bustin' force known as T-Rex!!
T-Rex mixes many genres into one solid show. It has fun characters, clever writing, amusing celebrity imitations.
Taken from WELCOME TO THE DRAGON CO!(http://www.geocities.com/bubba_trex/index.html)