It's possible:
* There's a misspelling in the name: Double-check the spelling.
* The person is not publicly known: They might be a lesser-known actor, a crew member, or someone working behind the scenes.
* The information is not readily available online: Their projects might not be listed publicly.
If you have any additional information about James Capel, such as a specific film or show they worked on, or any other details, I might be able to help you find more information.