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Warren Hull as Bill MacGregor |
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Kay Linaker as Sonia Manning |
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Wilhelm von Brincken as Professor Werner |
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George Cleveland as John MacGregor |
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Fern Emmett as Aunt Mary |
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Edward Keane as Newspaper Editor |
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Willy Castello as Eric Bowman |
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John Sheehan as Marden |
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Herbert Corthell as Pete |
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Vince Rush as Gruen |
| Sound | Karl Zint | Sound Engineer |
| Directing | Howard Bretherton | Director |
| Production | T.R. Williams | Producer |
| Sound | Edward J. Kay | Music Director |
| Production | Fred Scheld | Associate Producer |
| Directing | W.B. Eason | Assistant Director |
| Editing | Russell F. Schoengarth | Editor |
| Editing | Robert Golden | Editor |
| Writing | Marion Orth | Writer |
| Writing | Charles Williams | Writer |
| Camera | Harry Neumann | Director of Photography |
