The Colossus of New York

John Baragrey

Dr. Henry Spensser

Mala Powers

Anne Spensser

Otto Kruger

Dr. William Spensser

Robert Hutton

Dr. John Robert Carrington

Ross Martin

Dr. Jeremy 'Jerry' Spensser

Charles Herbert

Billy Spensser

Charles Sherlock

Airline Pilot

George Douglas

Harold Miller

Jack Richardson

Ed Wolff

The Colossus

Dick Nelson

Charles - Chauffeur-Butler

Roy Engel

Police Inspector

Sam Harris

Larry Kerr

Foster H. Phinney

Max Power

Court Shepard

Bert Stevens

Ed Wolff