Frank Welker

Scooby-Doo / Pterodactyl (voice)

Ken Jeong

Dynomutt (voice)

John DiMaggio

Restaurant Owner (voice)

Pierce Gagnon

Young Fred (voice)

Tracy Morgan

Captain Caveman (voice)

Gina Rodriguez

Velma Dinkley (voice)

Billy West

Muttley (voice)

Will Forte

Shaggy Rogers (voice)

Adam Sztykiel

Executive Producer

Richard Suckle

Executive Producer

Jason Isaacs

Dick Dastardly (voice)

Tony Cervone

Director

Dan Povenmire

Executive Producer

Mark Wahlberg

Blue Falcon (voice)

Zac Efron

Fred Jones (voice)

Amanda Seyfried

Daphne Blake (voice)

Kiersey Clemons

Dee Dee Skyes (voice)

Iain Armitage

Young Shaggy (voice)

Mckenna Grace

Young Daphne (voice)

Ariana Greenblatt

Young Velma (voice)

Simon Cowell

Simon Cowell (voice)

Christina Hendricks

Officer Jaffe (voice)

Henry Winkler

Keith (voice)

Harry Perry

Harry Perry (voice)

Kevin Heffernan

Bike Cop Gary (voice)

Ira Glass

Ira Glass (voice)

Henry Kaufman

Chad / Chet (voice)

Maya Erskine

Judy Takamoto (voice)

Andy Horwitz

Executive Producer

Charles Roven

Executive Producer

Jesse Ehrman

Executive Producer

Chris Columbus

Executive Producer