Who Is Number One?
- Жыл: 1917
- Өлкө: United States of America
- Жанр: Mystery
- Студия: Paramount Pictures
- Ачкыч сөз: movie serial
- Директор: William Bertram
- Кастинг: Kathleen Clifford, Cullen Landis, Gordon Sackville, Neil Hardin, Bruce Smith, Ethel Ritchie
