The Atomic Kid

Mickey Rooney

Barnaby 'Blix' Waterberry

Robert Strauss

Stan Cooper

Elaine Devry

Audrey Nelson

Bill Goodwin

Dr. Rodell

Whit Bissell

Dr. Edgar Pangborn

Joey Forman

MP in Hospital

Peter Leeds

Agent Bill

Hal March

Agent Ray

Fay Roope

Gen. Lawlor

Stanley Adams

Wildcat Hooper

Robert Emmett Keane

Mr. Reynolds

Paul Dubov

Anderson

Bill Welsh

Commentator