What if William Hanna and Joseph Barbera worked for Warner Bros. after leaving MGM and retained the rights for Tom and Jerry/Harvey Birdman, Attorney at Law

Harvey Birdman, Attorney at Law is an American animated television series comedy created by Michael Ouweleen and Erik Richter for Adult Swim. The show revolves around the activity of the Sebben & Sebben law firm, which is staffed mainly by superheroes and other characters who had originally been featured in past Warner Bros. Animation and Hanna-Barbera cartoons, most notably Birdman and the Galaxy Trio.

Harvey Birdmans pilot first aired on Cartoon Network on December 30, 2000. On September 2, 2001, the series moved to Adult Swim, continuing for four seasons and 39 episodes before ending on July 22, 2007. The show is also a spin-off of Space Ghost Coast to Coast, where Birdman got his first name from. Both Space Ghost and Birdman original series were based on action / adventure script, and, decades later, applied in comedic contexts.

Premise
Harvey Birdman, Attorney at Law features ex-superhero Harvey T. Birdman of Birdman and the Galaxy Trio as an attorney working for a law firm alongside other cartoon stars from 1960s and 1970s Hanna-Barbera cartoon series. Similarly, Harvey's clients are also primarily composed of characters taken from the Looney Tunes/Merrie Melodies franchise and the Hanna-Barbera cartoon series of the same era. Many of Birdman's nemeses featured in his former cartoon series also became attorneys, often representing the opposing side of a given case.

Harvey usually fills the role of a criminal defense attorney, though he will act as a civil litigator or other such job when the plot calls for it. The series uses a surrealist style of comedy, featuring characters, objects, and jokes that are briefly introduced and rarely (if ever) referenced thereafter. Also, because the series relies heavily on popular culture references to classic television animation, Harvey Birdman, Attorney at Law constantly delves into parody, even featuring clips of these series or specially-created scenes which mimic the distinctive style of the animation being referenced. Harvey Birdman, Attorney at Law is the first Williams Street cartoon to maintain continuity through the entire series. Various episodes reference Harvey's (or another superhero's) former crimefighting career. The episode "Turner Classic Birdman" even serves to bridge the gap between Birdman and the Galaxy Trio and Harvey Birdman, Attorney at Law.

Instead of rigid plot structure, much of the humor is derived from the fact that superheroes and supervillains are given more realistic and human qualities, such as a mad scientist named Dr. Myron Reducto, who becomes a paranoid prosecutor. Also, several of the plots revolve around the popular myths about classic Hanna-Barbera characters, such as Shaggy and Scooby-Doo being stoners.

Voice actors

 * Gary Cole as Harvey Birdman and Hiram Mightor
 * Stephen Colbert as Phil Ken Sebben and Myron Reducto
 * Peter MacNicol as X the Eliminator
 * Thomas Allen as Peanut
 * John Michael Higgins as Mentok the Mindtaker, Zardo and Grape Ape
 * Joe Alaskey as Peter Potamus (first), Bugs Bunny, Daffy Duck, Plucky Duck, Sylvester, Tweety, The Tasmanian Devil and Marvin the Martian
 * Chris Edgerly as Peter Potamus (second), DVD, Mr. Finkerton, The Funky Phantom, Augie Doggie, Cumulus the Storm King, Captain Caveman and Fancy Fancy
 * Debi Mae West as Gigi
 * Maurice LaMarche as Azul Falcone, Stan Freezoid, Apache Chief, Yosemite Sam, Fred Flintstone, Yogi Bear, Der Spuzmacher, Inch High, Speed Buggy, Hi-Riser, Doggie Daddy, Droopy, Quick Draw McGraw, Wally Gator, Morocco Mole, Garok, Cavey Jr., Magilla Gorilla, Mr. Peebles, Benny the Ball, Dum Dum, Shazzan, Atom Ant and Nitron
 * Kevin Michael Richardson as Barney Rubble
 * Tress MacNeille as Lola Bunny, Granny, Babs Bunny, Dot Warner, Wilma Flintstone and Pebbles Flintstone
 * Grey DeLisle as Debbie, Daphne Blake, Dr. Gale Melody and Mary
 * Michael McKean as Evelyn Spyro Throckmorton
 * Tom Kenny as Boo-Boo Bear
 * Neil Ross as Vulturo, Dr. Benton Quest and Ding-A-Ling Wolf
 * Billy West as Porky Pig and Elmer Fudd
 * Phil LaMarr as Black Vulcan
 * Matt Peccini as The Bear
 * Paget Brewster as Birdgirl
 * Charlie Adler as Buster Bunny
 * Rob Paulsen as Yakko Warner
 * Jess Harnell as Wakko Warner
 * Bill Farmer as Secret Squirrel
 * Lewis Black as Elliott the Deadly Duplicator
 * Scott Innes as Shaggy Rogers, Scooby-Doo and Scrappy-Doo
 * Steve Blum as Yakky Doodle