Frank Albertson

Tom Hood

Ernie Nevers

Bob Collins

Cecilia Parker

Betty Moore

Francis Ford

Botter Hood

J. Frank Glendon

Sam Slater

Frank Beal

Horace Moore

Caryl Lincoln

Kate Bland

Tom London

Dirk / Detective Dane

Al Ferguson

Gavin

Jack Rube Clifford

Doran

Edmund Cobb

Spike

Joe Bonomo

Joe

George Magrill

Lefty

Harold Nelson

Prof. Wilson

George DeNormand

Henchman

William Gould

Steele [Ch. 1]

Reb Russell

One of Bob's College Pals

Larry Steers

Maitre d', Red Lantern Cafe [Ch. 3]

Harry Strang

Eddie, Waiter at Red Lantern Cafe [Ch. 3]

Henry MacRae

Director

Arthur Conan Doyle

Story