There is no record of a film called "Gentleman for En Time" from 1917. It's possible you're thinking of a different film with a similar title, or there may be a typo.
To help me find the correct film, could you please provide more details? For example:
* What genre was the film? (e.g., comedy, drama, romance)
* What is the full title of the film?
* Are there any other details you remember, like a specific plot point or character name?
Once I have more information, I can try to help you find the cast list.