Lego Warner Bros.: Ultimate Teamup

 is a Lego-themed action-adventure video game developed by Traveller's Tales and published by Warner Bros. Interactive Entertainment, being released for PC, Mac, PlayStation 4, Xbox One and Nintendo Switch on TBD.

Synopsis
A mysterious time crisis begins, leading to a group of heroes to have to work together to stop the united villains.

Main

 * Bugs Bunny (voiced by Jeff Bergman) - TBD
 * The Looney Tunes Show Bugs Bunny (also voiced by Jeff Bergman) - TBD
 * Wabbit/New Looney Tunes Bugs Bunny (also voiced by Jeff Bergman) - TBD
 * Lola Bunny (voiced by Kath Soucie) - TBD
 * The Looney Tunes Show Lola Bunny (voiced by Kristen Wiig) - TBD
 * Wabbit/New Looney Tunes Lola Bunny (also voiced by Kath Soucie) - TBD
 * Daffy Duck (also voiced by Jeff Bergman) - TBD
 * The Looney Tunes Show Daffy Duck (also voiced by Jeff Bergman) - TBD
 * Wabbit/New Looney Tunes Daffy Duck (voiced by Dee Bradley Baker) - TBD
 * Collin Brady/Collin the Speedy Boy (voiced by Jason Griffith) - TBD
 * Yogi Bear (also voiced by Jeff Bergman) - TBD
 * Scooby-Doo (voiced by Frank Welker) - TBD
 * Bruce Wayne/Batman (voiced by Troy Baker) - TBD
 * Classic Bruce Wayne/Batman (voiced by Wally Wingert) - TBD
 * DCAU Bruce Wayne/Batman (voiced by Kevin Conroy) - TBD
 * DCEU Bruce Wayne/Batman (voiced by ) - TBD
 * Kal-El/Clark Kent/Superman (voiced by Travis Willingham) - TBD
 * Classic Kal-El/Clark Kent/Superman (voiced by Paul Rugg) - TBD
 * DCAU Kal-El/Clark Kent/Superman (voiced by George Newbern) - TBD
 * DCEU Kal-El/Clark Kent/Superman (voiced by Henry Cavill) - TBD
 * Princess Diana of Themyscira/Diana Prince/Wonder Woman (voiced by Laura Bailey) - TBD
 * Classic Princess Diana of Themyscira/Diana Prince/Wonder Woman (voiced by Lynda Carter) - TBD
 * DCAU Princess Diana of Themyscira/Diana Prince/Wonder Woman (voiced by Susan Eisenberg) - TBD
 * DCEU Princess Diana of Themyscira/Diana Prince/Wonder Woman (voiced by Gal Gadot) - TBD
 * Blossom, Bubbles and Buttercup (voiced by Cathy Cavadini, Tara Strong and Elizabeth Daily, respectively) - TBD
 * Samurai Jack (voiced by Phil LaMarr) - TBD
 * Harry Potter (voiced by Daniel Radcliffe) - TBD
 * Frodo (voiced by Yuri Lowenthal) - TBD
 * Austin Powers (voiced by Keith Ferguson) - TBD
 * Neo (also voiced by Troy Baker) - TBD
 * Osmosis Jones (also voiced by Phil LaMarr) - TBD

Guest

 * Sonic the Hedgehog (voiced by Rob Paulsen) - TBD
 * Classic Sonic the Hedgehog (voiced by Bobby Moynihan) - TBD
 * Sonic Boom Sonic the Hedgehog (voiced by Roger Craig Smith) - TBD
 * Miles "Tails" Prower (also voiced by Elizabeth Daily) - TBD
 * Classic Miles "Tails" Prower (voiced by TBD) - TBD
 * Sonic Boom Miles "Tails" Prower (voiced by Colleen Villard) - TBD
 * Knuckles the Echidna (voiced by Jess Harnell) - TBD
 * Classic Knuckles the Echidna (also voiced by Jess Harnell) - TBD
 * Sonic Boom Knuckles the Echidna (also voiced by Travis Willingham) - TBD
 * Optimus Prime (voiced by David Tennant) - TBD
 * Bumblebee (voiced by Scott Menville) - TBD
 * Twilight Sparkle (voiced by Grey Griffin) - TBD
 * Spike (also voiced by Bobby Moynihan) - TBD
 * Blythe Baxter (also voiced by Colleen Villard) - TBD
 * Eli (voiced by Elijah Wood) - an armored dragon.
 * Archie Andrews (voiced by TBD) - TBD

Supporting

 * The Clockwork (voiced by Jason Bateman) - TBD
 * Porky Pig (voiced by Bob Bergen) - TBD
 * The Looney Tunes Show Porky Pig (also voiced by Bob Bergen) - TBD
 * Wabbit/New Looney Tunes Porky Pig (also voiced by Bob Bergen) - TBD
 * Sylvester Pussycat (also voiced by Jeff Bergman) - TBD
 * The Looney Tunes Show Sylvester Pussycat (also voiced by Jeff Bergman) - TBD
 * Wabbit/New Looney Tunes Sylvester Pussycat (also voiced by Jeff Bergman) - TBD
 * Tweety Bird (also voiced by Jeff Bergman) - TBD
 * The Looney Tunes Show Tweety Bird (also voiced by Jeff Bergman) - TBD
 * Wabbit/New Looney Tunes Twety Bird (also voiced by Bob Bergen) - TBD
 * Buster and Babs Bunny (voiced by Charlie Adler and Tress MacNeille, respectively) - TBD
 * Yakko, Wakko and Dot Warner (also voiced by Rob Paulsen, Jess Harnell and Tress MacNeille, respectively) - TBD
 * Evelynn Rodriguez (also voiced by Kath Soucie) - TBD
 * Cooper Elledge (also voiced by Jason Griffith) - TBD
 * Flappy McFinger (voiced by Billy West) - TBD
 * Boo-Boo Bear (voiced by Tom Kenny) - TBD
 * Shaggy Rogers (voiced by Matthew Lillard) - TBD
 * Fred Jones (also voiced by Frank Welker) - TBD
 * Daphne Blake (also voiced by Grey Griffin) - TBD
 * Velma Dinkley (voiced by Kate Micucci) - TBD
 * Professor Utonium (voiced by Tom Kane) - TBD
 * The Scotsman (voiced by John DiMaggio) - TBD
 * Samwise Gamgee (voiced by Sean Astin) - TBD
 * Gandalf (voiced by ) - TBD
 * Aragorn (voiced by Robin Atkin Downes) - TBD
 * Basil Exposition (voiced by ) - TBD
 * Morpheus (voiced by Khary Payton) - TBD
 * Trinity (voiced by Jennifer Hale) - TBD
 * Drix (voiced by Jeff Bennett) - TBD
 * Sheldon Cooper (voiced by ) - TBD
 * Dean and Sam Winchester (voiced by and, respectively) - TBD

Guests

 * Amy Rose (also voiced by Grey Griffin) - TBD
 * Classic Amy Rose (voiced by TBD) - TBD
 * Sonic Boom Amy Rose (voiced by Cindy Robinson) - TBD
 * Princess Sally Acorn (also voiced by Kath Soucie) - TBD
 * Classic Princess Sally Acorn (also voiced by Kath Soucie) - TBD
 * Rainbow Dash (also voiced by Elizabeth Daily) - TBD
 * Honey (also voiced by Grey Griffin) - a Honey Dragon who is Eli's girlfriend.

Antagonists

 * The Time Queen (voiced by Anne Hathaway) - TBD
 * The Time Breaker (voiced by TBD) - TBD
 * Elmer Fudd (also voiced by Billy West) - TBD
 * The Looney Tunes Show Elmer Fudd (also voiced by Billy West) - TBD
 * Wabbit/New Looney Tunes Elmer Fudd (also voiced by Jeff Bergman) - TBD
 * Yosemite Sam (voiced by Maurice LaMarche) - TBD
 * The Looney Tunes Show Yosemite Sam (also voiced by Maurice LaMarche) - TBD
 * Wabbit/New Looney Tunes Yosemite Sam (voiced by Fred Tatasciore) - TBD
 * Marvin the Martian (also voiced by Bob Bergen) - TBD
 * The Looney Tunes Show Marvin the Martian (voiced by Eric Bauza) - TBD
 * Wabbit/New Looney Tunes Marvin the Martian (also voiced by Eric Bauza) - TBD
 * Teary Eyed Bryte (also voiced by Grey Griffin) - TBD
 * Eli and Fang Suckle (also voiced by Billy West and Eric Bauza, respectively) - TBD
 * Dick Dastardly (voiced by Jim Cummings) - TBD
 * Muttley (vocal effects by Frank Welker) - TBD
 * Lex Luthor (voiced by Clancy Brown) - TBD
 * The Joker (voiced by Mark Hamill) - TBD
 * Mojo Jojo (voiced by Roger L. Jackson) - TBD
 * Aku (voiced by Greg Baldwin) - TBD
 * Lord Voldemort (voiced by Robert Englund) - TBD
 * Sauron (voiced by Nolan North) - TBD
 * Saruman (also voiced by Nolan North) - TBD
 * Gollum (also voiced by Dee Bradley Baker) - TBD
 * Dr. Evil (also voiced by Keith Ferguson) - TBD
 * Mini-Me (non-speaking) - TBD
 * Mr. Bigglesworth (vocal effects by Frank Welker) - TBD
 * Number 2 (also voiced by Troy Baker) - TBD
 * Frau Farbissina (voiced by TBD) - TBD
 * Scott Evil (voiced by Seth Green) - TBD
 * Fat Bastard (also voiced by Keith Ferguson) - TBD
 * Agent Smith (also voiced by Travis Willingham) - TBD
 * Thrax (also voiced by Khary Payton) - TBD
 * It (voiced by Tim Curry) - TBD
 * Freddy Krueger (also voiced by Robert Englund) - TBD

Guest

 * Dr. Ivo "Eggman" Robotnik (also voiced by Jim Cummings) - TBD
 * Classic Dr. Ivo "Eggman" Robotnik (also voiced by Jim Cummings) - TBD
 * Sonic Boom Dr. Ivo "Eggman" Robotnik (voiced by Mike Pollock) - TBD
 * Megatron (also voiced by Frank Welker) - TBD
 * Starscream (also voiced by Mark Hamill) - TBD
 * Discord (voiced by John de Lancie) - TBD
 * Mrs. Anna Twombly (voiced by TBD) - TBD

Levels
See List of Lego Warner Bros: Ultimate Teamup levels.

Trivia

 * Some more adult Warner Bros. franchises appear on the game, but with their content toned down in order to be family-friendly.