Directed by
| James P. Hogan | ||
Writing Credits
| Harry Davis | ... | (story) |
| Dorothy Howell | ... | (scenario) |
Cast (in credits order)
 |
Thunder the Dog | ... | Black Lightning (as Thunder the Marvel Dog) |
| Clara Bow | ... | Martha Larned | |
| Harold Austin | ... | Roy Chambers | |
| Eddie Phillips | ... | Ez Howard | |
| Joe Butterworth | ... | Dick Larned | |
|
|
Mark Fenton | ... | Doctor |
|
|
John Pringle | ... | City Doctor |
| James P. Hogan | ... | Frank Larned | |
| Jim Mason | ... | Jim Howard | |
Produced by
| James P. Hogan | ... | producer |
Cinematography by
| James P. Hogan | ||
Additional Crew
| Samuel Sax | ... | presenter |
