Cast
- Warren Hull as Bill MacGregor
- Kay Linaker as Sonia Manning
- Wilhelm von Brincken as Professor Werner
- George Cleveland as John MacGregor
- Fern Emmett as Aunt Mary
- Edward Keane as Newspaper Editor
- Willy Castello as Eric Bowman
- John Sheehan as Marden
- Herbert Corthell as Pete
- Vince Rush as Gruen
Crew
- Howard Bretherton · Director
- Charles Williams · Writer
- Marion Orth · Writer
- T.R. Williams · Producer
- Harry Neumann · Cinematographer
- Robert Golden · Editor