George Cooper

Russ Haines

Roy Roberts

Capt. S. Taplinger

Billy Wayne

Sgt. 'Berk' Berkeley

Peter Brocco

E. V. Wessman

David Bauer

Tony Polacheck

Paul Marion

Sam Polacheck

Ransom M. Sherman

Oscar Hollingsworth

Cliff Clark

Fire Engineer Robby Rollins

Celia Lovsky

Bertha Polacheck

Jimmie Dodd

Kenneth Bender

G. Pat Collins

Battalion Fire Chief

Robert Bice

Arthur Latch - Lab Technician

Keith Richards

Rodell - Arson Inspector (uncredited)

Willard Waterman

Robert J. Wilke