O Mundo de Greg

Philip Solomon

Craig Williams (voice)

172 eps.

H. Michael Croner

John 'J.P' Paul (voice)

172 eps.

Noël Wells

Kelsey / Mortimor (voice)

172 eps.

Ben Levin

Little Warrior's Father / Dragoose (voice) / Mark / Brad (voice) / Cat / Slide (voice) / Hubert (voice) / Customer (voice) / Bobby / Kid (voice) / Acorn Knight / Rando (voice) / Bobby / Frisboy (voice) / Neighbor (voice) / Bobby / Tom (voice) / Bobby / Narrator (voice) / Game (voice) / Giggles / Kid 1 (voice) / Bobby / Video Game Announcer (voice) / Mark (voice) / Bobby / Customer (voice) / Bobby / Kid 26 (voice) / Spikey Spectre (voice) / Bobby / Babysitter Ben (voice) / Reedy (voice) / Bobby (voice) / Bobby / Frog Boy (voice) / Mark / Bobby (voice) / Additional Voices (voice) / Mark / Professor (voice) / Slide (voice) / Tony (voice) / Bobby / Slide (voice) / Bobby / Tony (voice) / Glen (voice) / Bobby / Old Man Burl (voice) / Danny (voice) / Bobby / Frisboy / Worker (voice) / Hs Ranger / Guard #1 (voice) / Mark / Tony (voice) / Video Game Announcer (voice) / Bobby / Librarian (voice) / Bobby / Toy (voice) / Tour Guide / Professor (voice) / Bobby / Man (voice) / Mark / Monster (voice) / Announcer (voice) / Giggles (voice) / Frisboy (voice)

89 eps.

Matt Burnett

Acorn Guard (voice) / Randy (voice) / Randy / Kid #1 (voice) / Barry / Boris (voice) / Barry / Dr. Robomelette (voice) / Dr. Robomelette (voice) / Randy / Knight (voice) / Potty Panda (voice) / Roger (voice) / Barry (voice) / Roger / Boris (voice) / Barry / Delivery Person (voice) / Harold (voice) / Barry / Bottle (voice) / Dr. Robomelette / Narrator (voice) / Roger / Young Matt (voice) / Barry / Lil Matt (voice) / Randy / Acorn Knight 1 (voice) / Sir Gregor / Alaric's Father (voice) / Boris (voice) / Game / Babysitter Matt (voice) / Additional Voices (voice) / Acorn Knight (voice)

62 eps.

Phil LaMarr

Bernard / Singer (voice) / Wolfgang / Audience Member (voice) / Bernard / Mr. Punches (voice) / Wolfgang (voice) / Bernard / Dashawn (voice) / Bernard / Brownie Monster (voice) / Bernard / Lamar (voice) / Bernard / Ian (voice) / Neil (voice) / Paintball Mike / Sailor Boy (voice) / Carl / Gooey (voice) / Carl / Dream Mortimer (voice) / Bernard / Jaime / Student #1 (voice) / Bernard / Wolfgang (voice) / Bernard / Paintball Mike (voice) / Sailor Boy (voice) / Bernard (voice) / Bernard / Gus (voice) / Wolfgang / Sailor Boy (voice) / Paintball Mike (voice) / Bernard / Announcer (voice) / Carl / Cheesesticks (voice) / Carl (voice) / Paintball Mike / Kid 67 (voice) / Ronald / Teen #2 (voice)

62 eps.

Kimberly Hébert Gregory

Nicole / Stacie (voice) / Nicole / Wind (voice) / Nicole / Piper (voice) / Nicole (voice) / Nicole / Baronica (voice) / Nicole / Former Acorn Knight (voice)

44 eps.

Dana Davis

Kit / Dog Owner (voice) / Kit / Big Red / Little Blue (voice) / Kit / Big Red / Monster (voice) / Kit / Prynda (voice) / Kit (voice) / Kit / Big Red (voice) / Scoot (voice) / Kit / Scoot (voice) / Prynda (voice) / Scoot / Kit (voice) / Big Red / Kid 23 (voice) / Big Red (voice)

43 eps.

Lucia Cunningham

Jessica / Tiffany (voice) / Jessica / Kid (voice) / Jessica (voice)

42 eps.

Zeno Robinson

Omar / Jon jon (voice) / Omar (voice) / Omar / Security Baby (voice) / The Green Poncho (voice) / The Green Poncho / Omar / Acorn Guard #1 (voice) / Omar / Gary (voice) / Carter (voice) / Carter / Omar (voice) / Additional Voices (voice) / Omar / Carter (voice) / Omar / Heart of the Forest (voice) / The Green Poncho / Acorn Knight / Carter (voice) / The Green Poncho / Acorn Knight 1 (voice) / The Green Poncho / Kid (voice) / Omar / Brice (voice) / Poncho (voice) / Omar / Mole Paw / Lil lil (voice) / The Green Poncho / Omar (voice) / The Green Poncho / Soldier (voice)

37 eps.

Jeff Trammell

Cannonball / Gibson (voice) / Cannonball / Rob (voice) / Cannonball / Jeff (voice) / Kit's Dad (voice) / Gibson (voice) / Cannonball / Lighting Bug (voice) / Cannonball / Crowd Guy (voice) / Cannonball (voice)

29 eps.

Terry Crews

Duane / Bobby Bodega (voice) / Duane / Kit's Dad (voice) / Duane (voice)

25 eps.