Lara Jill Miller (38)

Juniper Lee (voice)

Kath Soucie (44)

Ray Ray Lee (voice)

Carlos Alazraqui (42)

Monroe (voice)

Candi Milo (44)

Ophelia Ramírez (voice)

Amy Hill (52)

Ah Mah (voice) / Jasmine Lee (voice)

Rip Taylor (74)

Horrifying Monster (voice)

Adam Wylie (21)

Deputy Minion / Zombie #1 (voice)

Billy West (53)

Terry / Pilot #2 (voice) / Geek Monster #1 / Hollis (voice) / Leprechaun (voice)

Dan Finnerty (35)

Singer (voice)

Rob Paulsen (49)

Big Jock / Duke / Leonard the Goblin (voice) / 10th Level Warlock (voice)

Susan Silo (62)

Auntie Roon (voice)

Colleen O'Shaughnessey (33)

Jody Irwin (voice) / Margie (voice)

Maurice LaMarche (47)

Dimitri the Terrible / Scotty (voice)

Jane Lynch (44)

Madame Rothchild (voice)

Jeff Bennett (42)

Loki (voice) / Cletus (voice) / Cletus / Answering Machine / Skeeter (voice) / Ring Announcer (voice) / Michael / Channel Announcer (voice) / Skeeter Khomen-Getit (voice)

Tara Strong (32)

Roger Radcliffe (voice) / Beatrice (voice) / Roger Radcliffe / Melissa O'Malley (voice) / Roger Radcliffe / Demon (voice) / Lila (voice)

Cynthia Songé

Guy / Monster Human Child #2 (voice)

Clancy Brown (46)

Lex Luthor / Tux Monster / Geek Monster #4 (voice) / Nester (voice)

Martin Jarvis (63)

William / King Teddy (voice) / William / Bartok (voice)

Jessica Walter (64)

Demoness / Cordoth's Daughter (voice)

Dee Bradley Baker (42)

Gus (voice) / Gus / Pilot #1 / Vortek (voice) / Taranok / Securitos Troll #2 / Dragon (voice) / Genie / Hamster / Monster (voice) / Boomfist / Dr. Termino / Fish Monger (voice) / Derek / Mitch the Enchanted Rhino (voice) / Jonathan (voice) / Boomfist / Narrator / Comic Store Clerk (voice) / Gus / Announcer / Vendor (voice) / Furry Monster / Old Man / Junior Executive (voice) / Taylor (voice) / Gus / Tupa Beast (voice)

S. Scott Bullock (49)

Thor (voice) / Camel #1 (voice) / Wrongness / Zach / Knight Possum (voice) / Ooni / Zach / Troll (voice) / Banticore #2 / Monotook (voice) / Employee / Gorp / Guard (voice) / Leprechaun #2 / Announcer / Attendant (voice) / Agent #2 / Roscoe (voice) / Wrongness / Newscaster (voice) / Monster Reporter / Customer (voice)

Daran Norris (40)

Jean Claude (voice) / Steven the Sandman (voice) / Mr. Radcliffe (voice) / Steven the Sandman / Mr. Rosskins / Race Announcer (voice) / Artie / Greg / Announcer (voice) / Julian Norris (voice) / Camel #2 (voice)

Phil LaMarr (38)

Marcus (voice) / Mant / Donnie / Old Man (voice) / Donnie (voice) / Charlie (voice) / Senior Executive (voice) / Freddy (voice)

James Hong (76)

Uncle Eddie (voice)

Gwendoline Yeo (27)

Cousin Lisa / Aunt Lily (voice)

Debi Derryberry (44)

Chorus (voice)

Jess Harnell (41)

Chorus (voice)

James Sie (42)

Kellington / Kai Yee (voice)

Pat Musick (49)

Eloise (voice)