Gregg Palmer
— John Mapes
Kathleen Crowley
— Jeanne Mapes
Edward Platt
— Mr. Tucker / Mr. T
John Lupton
— Ray Miller
Don Sullivan
— George Leland
Ned Glass
— Sidney Horner
Robert Shayne
— Lt. Cassidy
I. Stanford Jolley
— King Invader
Vikki Dougan
— Karen
Byron Foulger
— Train Conductor
Gene Roth
— Train Conductor
Collette Lyons
— Rita Leland
Tiger Joe Marsh
— Cop boarding train