Jason Marsden

Spunky Spencer (voice)

Raymond “Renny” Marr (voice/uncredited)

Bart Allen (voice) / Bart Allen / Impulse (voice) / Bart Allen / Kid Flash (voice) / Bart Allen / Lok-Ron (voice) / Impulse (voice) / Impulse / Atom (voice) / Impulse / Kid Flash / Atom (voice) / Impulse / Lead Singer (voice) / Impulse / Ray Palmer (voice) / Kid Flash (voice) / Kid Flash / Danny Chase (voice) / Kid Flash / Thomas Tompkins (voice)

Snapper Carr (voice) / Snapper Carr / Bystander (voice) / Snapper Carr / Kid (voice) / Snapper Carr / SCU Officer (voice) / Snapper Carr / Soldier (voice) / Snapper Carr / Thanagarian Soldier (voice)

Horbert Feist (voice)

Antonio (voice) / Young Max Tennyson (voice)

Grimp

Donny (voice)

Nelson Burkhard

Billy Numerous (voice) / Red Star (voice)

Rich Halke

Felix Renton (voice) / Ryan (voice) / Shark Kid (voice) / Sportscaster (voice)

GPS / Babysitter / Hack Smashnikov (voice) / Manager / Funso / Host (voice)

Owen (voice) / Teenage Clark Kent (voice) / Young Clark Kent (voice)

Kim

Boy #1 / Boy #2 (voice) / Firefly (voice)

Waiter (voice)

Sasuke (voice)

Nermal (voice)

Matt Olsen

Sumo / Brian / Belson (voice)

Richie Foley (voice) / Richie Foley / Gear (voice)

Paco (voice) / Scooby-Doo Robin (voice) / Speedy (voice)

Dash X

Max Goof (voice)

Kovu (voice)

Garrett Miller (voice)

Young Bruce Wayne (voice)

Leo (voice)

Chase Young

Shnookums (voice)

(voice) / Mungo (voice)

Tino Tonitini

Duke (voice)

King Louie

Kade Burns (voice)

Young Miles Silverberg

Gregory Morgan

Cavin (voice)

Peter Pan (voice)

Jack (voice)

Additional Voices (voice)

Kovu (voice)

Additional Voices (voice)

Max (voice)

Cyrus

Max (voice)

Dick Grayson / Young Bruce Wayne (voice)

Snapper Carr (voice)

Max Goof (voice)

Snapper Carr (voice)

Nermal (voice)

Snapper Carr (voice)

Thomas Wayne / Cop / Doctor / Youth 2 (voice)

Nermal / Abnermal (voice)

Burt Ward

Chester McBadbat / Eliminator #5 (voice)

Box Demon (voice)

Young Man / Bartender (voice)

Nermal (voice)

Michael (voice)

Tasslehoff Burrfoot (voice)

Bug

Nermal / Ramone (voice)

Shay Jennings

Corki

Boy

Kenny

Eric Moeberg

Chester McBadbat (voice)

Suicide Jack

Nurse Crackers / Devored Animals (voice)

Chester (voice)

Tommy

Chester McBadbat (voice)

Sydmull

Bill Dooley

(Voice)

Chester McBadbat / Aladdin Guy / Guard #2 (voice)

Buddy (Age 15)

Chester McBadbat / Clint / Jeff / Johnny Hunt / Shaggy (voice)

Young Man / Bartender (segment "Jonah Hex") (voice)