Charles Quigley
饰：Gene Townley
布鲁斯·班尼特
Bruce Bennett
饰：Tiny Dawson
大卫·夏普
David Sharpe
饰：Bert Knowles
卡罗尔·兰迪斯
Carole Landis
饰：Blanche Granville
迈尔斯·曼德
Miles Mander
饰：Horace Granville
查尔斯·米德尔顿
Charles Middleton
饰：39013--Harry Crowel
C. Montague Shaw
Charles Montague Shaw
饰：Dr. Malcolm
Ben Taggart
饰：Dixon
William Pagan
William Pagan
饰：Police Chief Landon [Ch. 1]
雷蒙德·贝利
Raymond Bailey
饰：Stanley, Secretary [Chs. 1-3, 11]
Fred 'Snowflake' Toones
饰：Snowflake
Ray Miller
Ray Miller
饰：Jeff
罗伯特·温克勒
Robert Winkler
饰：Sammy Townley [Chs. 1, 11]
Tuffie the Dog
饰：Tuffie
埃德蒙·科博
Edmund Cobb
Howard M. Mitchell
亚基马·坎纳特
Yakima Canutt
罗伊·巴克罗夫特
Roy Barcroft
Eddie Parker
Eddie Parker
Loren Riebe
Dick Scott
乔治德诺尔芒迪
George DeNormand
Broderick O'Farrell
Harry Strang
Reginald Barlow
Lloyd Whitlock
瓦利·韦斯特
Wally West
Bill Nestell
Earle D. Bunn
Joe McGuinn
Roy Brent
Millard McGowan
George Chesebro
饰：Sheffield [Chs. 1, 11]
Bud Geary
Earle Hodgins
Reed Howes
Jack Kenny
John Merton
John Merton
Ted Mapes
Dave Wengren
蒙特·蒙塔古
Monte Montague
George Plues
Bernard Suss
Stanley Price
Cy Slocum
Duke Taylor
Al Taylor
肯·特雷尔
Ken Terrell
Sailor Vincent
Walter Merrill
Joe Yrigoyen
Bud Wolfe
罗伯特·J·威尔克
Robert J. Wilke
Earl Askam
Harry Anderson
Eddie Cherkose
Forrest Burns
Bert LeBaron
Raymond Largay
Jerry Jerome
Corbet Morris
饰：Klein [Ch. 5]
Oscar 'Dutch' Hendrian
Curley Dresden
James Fawcett
Eddie Foster
Jerry Frank