David's Dinosaur

Grandpa Archie

Professor Jackson Snide (as Jack Curenton)

David

Mover

Police Officer Ben

Police Officer Jerry

Lady with Dog

Bradley

Benny

Austin

Professor Henry Longbottom

Young Archie

Co-Pilot

Amelia

Pilot

Clumsy Mover

Man in Park

Mrs. Harryhausen

Joan

Delivery Man