Christopher Collet as Benjamin Reed

Cliff DeYoung as Digger Reed

Annabeth Gish as Jessie

Darleen Carr as Lisa Reed

Keith Dorman as Ralph

David Wohl as Loudon

M. Emmet Walsh as General Presser

Jay Brazeau as Zoo Guard

Bernard Cuffling as Galleria Manager

Don S. Davis as Capcom

Bill Dow as NASA Technician

Deryl Hayes as Security Man

Max Martini as Student Council President

Alicia Michelle as Buffy

Stephen E. Miller as Security Man

Robin Mossley as Mr. Ozone Driver

Gordon McIntosh as Sonny Biker

William Nunn as Express Driver

Betty Phillips as Chairwoman

Andrew Rhodes as NASA Technician

Howard Storey as Guard at Gate

Raimund Stamm as Dempsey