Jeremy Shada (13)

Finn the Human (voice)

John DiMaggio (41)

Jake the Dog (voice)

Tom Kenny (47)

Ice King (voice)

Hynden Walch (39)

Princess Bubblegum (voice)

Olivia Olson (17)

Marceline the Vampire Queen (voice)

Niki Yang (24)

BMO / Lady Rainicorn (voice)

Pendleton Ward (27)

Lumpy Space Princess (voice)

Isabella Acres (9)

Young Princess Bubblegum (voice)

Polly Lou Livingston (80)

Tree Trunks (voice)

Paul Reubens (57)

Gnome Ruler/Dancing Bug (voice)

Susie Essman (54)

Unknown

Ron Lynch (57)

Unknown

Brian Posehn (43)

Unknown

Biz Markie (45)

Unknown

Emo Philips (54)

Cuber (voice)

Bobcat Goldthwait (47)

Unknown

Billy West (57)

Goose / Erik Adamkinson / Mayor (voice)

Ashly Burch (19)

Breezy (voice) / Celina / Cheryl (voice) / Blacksmith / Scorpion (voice) / Cheryl / Celina / Super Porp Mutant (voice)

Brian Doyle-Murray (64)

Prince Huge (voice)

Alan Oppenheimer (79)

Darren the Ancient Sleeper/Sun (voice)

Beau Billingslea (65)

The Moon (voice)

Eric Bauza (30)

Buttersotch Butler (voice)

Kyla Kowalewski (8)

Me-Mow (voice)

Willow Smith (9)

Beth (voice)

Ava Acres (4)

Young Marceline (voice) / Candy Girl (voice) / Young Marceline / Bunny Girl (voice) / Candy Kids (voice) / Jamaica (voice) / Sunshine / Jamaica (voice) / Young Marcy (voice)

Sean Giambrone (10)

Shermy (voice)

Brian Baumgartner (37)

Georgy / Private (voice)

Toby Huss (43)

Booboo / Commander (voice)

'Weird Al' Yankovic (50)

Banana Man (voice)

James Urbaniak (46)

Vice President Blowfish (voice) / Rat King / Leaf Beard (voice)