Allan Lane
饰：Sergeant Dave King
Robert Strange
饰：John Kettler
Robert Kellard
饰：Corporal Tom Merritt, Jr.
Lita Conway
Lita Conway
饰：Linda Merritt
赫伯特罗林森
Herbert Rawlinson
饰：Inspector King [chs 1-4]
哈利·考丁
Harry Cording
饰：Wade Garson
Bryant Washburn
饰：Matt Crandall
Budd Buster
饰：Vinegar Smith
斯坦利·安德鲁斯
Stanley Andrews
饰：Tom Merritt Sr. [Ch. 1]
约翰·戴维森
John Davidson
饰：Dr. Shelton [Chs 4, 5]
约翰·迪尔森
John Dilson
饰：Doctor Wall - Inventor [Ch. 1]
Paul McVey
饰：Zarnoff - His Excellency [Ch. 1]
卢西恩·普里瓦尔
Lucien Prival
饰：Admiral Johnson [Ch. 1]
诺尔曼威利斯
Norman Willis
饰：Submarine Captain Tarner [Chs. 1,12]
Tony Paton
饰：Henchman LeCouteau
John Bagni
饰：Higgins, Cabin Henchman [Ch. 7] (uncredited)
Earle D. Bunn
饰：Joe - Smelter Truck Driver [Chs. 8-9] (uncredited)
Tommy Coats
饰：Henchman Mike (uncredited)
乔治德诺尔芒迪
George DeNormand
饰：Fake Inspector Kent [Ch. 11] (uncredited)
Curley Dresden
饰：Kelly - Miner [Chs. 1, 3] (uncredited)
Douglas Evans
饰：Sergeant - Wireless Operator [Chs. 1, 11] (uncredited)
James Fawcett
饰：Smelter Heavy #2 [Chs. 8-9] (uncredited)
George Ford
George Ford
饰：Paralytic #3 [Ch. 4] (uncredited)
Bud Geary
饰：Klondike (uncredited)
Alan Gregg
Alan Gregg
饰：Mills (uncredited)
山姆·哈里斯
Sam Harris
饰：Major Harold Bolton [Ch. 11] (uncredited)
Bob Jamison
Bob Jamison
饰：Pete (uncredited)
William Kellogg
William Kellogg
饰：Const. MacCloud (uncredited)
Walter Lowe
Walter Lowe
饰：Paralytic #2 [Ch. 4] (uncredited)
Ted Mapes
饰：Blake - Gang Pilot [Chs. 2-4, 7, 9] (uncredited)
Dave Marks
Dave Marks
饰：Knife Heavy [Ch. 6] (uncredited)
George Plues
饰：Train Brakeman [Ch. 5] (uncredited)
Wallace Reid Jr.
饰：Constable Doyle [chs 2, 9, 12] (uncredited)
Loren Riebe
饰：Fake Inspector Dinwoodie [Ch. 11] (uncredited)
Dick Simmons
饰：Const. Carter (uncredited)
Cy Slocum
饰：Sanitarium Heavy [Ch. 4] (uncredited)
William Stahl
William Stahl
饰：Corporal Bob Hastings [Ch. 1] (uncredited)
Denny Sullivan
Denny Sullivan
饰：Paralytic #1 [Ch. 4] (uncredited)
Al Taylor
饰：Henchman Red [Chs. 5-8, 10, 12] (uncredited)
Duke Taylor
饰：Smelter Heavy #1 [Chs. 8-9] (uncredited)
肯·特雷尔
Ken Terrell
饰：Henchman Al [Chs. 1, 3-5] (uncredited)
Charles Thomas
Charles Thomas
饰：Henchman Bayliss [Ch. 12] (uncredited)
Al Thompson
饰：Paralytic #4 [Ch.4] (uncredited)
Richard Travis
饰：Const. Hallett (uncredited)
Dale Van Sickel
饰：Gang Radioman [Ch. 2] (uncredited)
Frank Wayne
Frank Wayne
饰：Brant - Speedboat Driver-Thug [Chs. 1, 4. 9] (uncredited)
Robert Wayne
Robert Wayne
饰：Lieutenant [Ch. 1] (uncredited)
Bill Wilkus
Bill Wilkus
饰：Bill - Sanitarium Heavy [Ch. 4] (uncredited)