We don't have a biography for Young Bill Mulder yet. Hang in there, or go ahead and contribute one.
Appearances
The X-Files
Guest cast, played by Dean Aylesworth
- Episode 4x07: Musings of a Cigarette-Smoking Man (Nov 17, 1996)
- Episode 4x23: Demons (May 11, 1997)
- Episode 5x15: Travelers (Mar 29, 1998)