It's possible that:
* The name is misspelled: Double-check the spelling to ensure it's accurate.
* The person is not a public figure: It's possible that Mace Barrett is a private individual who has not been involved in any public acting roles.
Please provide more information if you have any other details about this person, such as a potential birthdate or any specific projects they might have been involved in. This will help in locating the right person and their acting credits.