William Collier Jr.

Bruce Harrington

Sally Blane

Carolyn Nolan

J. Farrell MacDonald

D.J. 'Smokey' Nolan

Hobart Bosworth

Mr. Harrington

Axel Axelson

Axel, the fireman

Lina Basquette

Betty

Eddie Phillips

Dick Walsh (posing as Bruce)

Claire McDowell

Ma Nolan

David Rollins

Jackie Nolan