Scoob!

Frank Welker

Scooby-Doo / Pterodactyl (voice)

Zac Efron

Fred Jones (voice)

Amanda Seyfried

Daphne Blake (voice)

Will Forte

Shaggy Rogers (voice)

Gina Rodriguez

Velma Dinkley (voice)

Mark Wahlberg

Blue Falcon (Voice)

Ken Jeong

Dynomutt, Dog Wonder (voice)

Kiersey Clemons

Dee Dee Skyes (voice)

Tracy Morgan

Captain Caveman (voice)

Eli Ray

Young Fred (voice)

Jason Isaacs

Dick Dastardly (voice)

Iain Armitage

Young Shaggy (voice)

Mckenna Grace

Young Daphne (voice)

Ariana Greenblatt

Young Velma (voice)

Simon Cowell

Himself (voice)

Christina Hendricks

Officer Jaffe (voice)

Henry Winkler

Keith (voice)

Harry Perry

Himself (voice)