- Kirk Alyn
- Superman / Clark Kent
- Noel Neill
- Lois Lane
- Tommy Bond
- Jimmy Olsen
- Carol Forman
- Spider Lady
- George Meeker
- Driller
- Jack Ingram
- Anton
- Pierre Watkin
- White
- Terry Frost
- Brock
- Charles King
- Conrad
- Charles Quigley
- Hackett
- Herbert Rawlinson
- Graham
- Forrest Taylor
- Leeds
- Stephen Carr
- Morgan
- Rusty Wescoatt
- Elton
- Fred Aldrich
- Cop at Museum
- Phil Arnold
- Cabbie
- Jimmy Aubrey
- Wave Tracer
- Robert Barron
- Ro-Zon
- Phil Bloom
- Spectator at Fire
- Nick Borgani
- Pedestrian
- Roy Butler
- Radio Operator
- James Carlisle
- Government Agent
- Virginia Carroll
- Martha Kent
- Ed Cassidy
- Eben Kent
- Jack Chefe
- Dupe
- Edmund Cobb
- Mechanic
- Tom Coleman
- Government Agent
- Sayre Dearing
- Man in Crowd
- Jack Deery
- Council Member
- George DeNormand
- Agent with Crandall
- Mason Alan Dinehart
- Young Clark Kent
- Frank Ellis
- Mine Security Guard
- Harry Evans
- Reporter
- William Fawcett
- Phoney News-Hawker
- Eddie Foster
- Fred Collier
- Joe Garcio
- Guard
- Jack George
- Railroad Workman
- Jack Gordon
- Police Officer
- Frank Hagney
- Car 1 Henchman
- Chuck Hamilton
- Prison Guard at Siren
- Ed Haskett
- Spectator at Council Meeting
- Ralph Hodges
- Teenage Clark Kent
- Reed Howes
- Jackson
- I. Stanford Jolley
- Sheriff
- Jack Kenny
- Miner
- Frank Lackteen
- Hawkins
- Nelson Leigh
- Jor-El
- Tom London
- Old-Timer at Mine
- George Magrill
- Bank Robber
- Max Mannes
- Pedestrian
- Knox Manning
- Narrator
- Sol Murgi
- Observer at Car Crash
- Frank O'Connor
- Police Chief Forman
- Wheeler Oakman
- Dr. Fredrick Larkin
- Eddie Parker
- Truck Driver
- Leonard Penn
- Electronics Store Owner / Henchman (uncredited)
- Paul Power
- Pedestrian
- Stanley Price
- Crandall
- Robert Robinson
- Man at Mine
- John Rosser
- Observer at Car Crash
- Gene Roth
- Carson
- Jeffrey Sayre
- Daily Planet Staffer
- Rube Schaffer
- Thug Holding Lois
- Charles Sherlock
- Daily Planet Worker
- Cap Somers
- Man at Mine
- Paul Stader
- Irwin
- Bert Stevens
- Man Sent for Help at RR Station
- Emmett Vogan
- Secretary of National Security
- Glen Walters
- Woman at Mine
- Luana Walters
- Lara
- Doodles Weaver
- Metropolis University Administration Building Guard
- Wally West
- Spectator at Fire / State Trooper (uncredited)
- Al Wyatt Sr.
- Thug Holding Lois
- Peggy Wynne
- Gloria
