Ralph Graves as Agent Walter Prescott

Ruth Mix as Agent Dorothy Dale

Dave O'Brien as Terry Navarro

Constance Bergen as Virginia Caswell

Matthew Betz as Henry Jensen

Robert Frazer as James Hackett

Harry 'Snub' Pollard as Vic Moran

Bob Walker as Capt. 'Shark' Malone

Bryant Washburn as Frank Caswell

Clara Kimball Young as Donna Luise Navarro

Josef Swickard as Don Pedro Navarro

Blackie Whiteford as Quinn McGuire

Yakima Canutt as Ed McMahan