Jim Begg (1938-2008) was an American actor. He appeared in two films used on Mystery Science Theater 3000, both of which also starred Tommy Kirk.
Begg appeared in many films and television series, including the Don Knotts comedy The Ghost and Mr. Chicken. He was known for his rotund physique and horn-rimmed eyeglasses.
- Begg's name became a running gag throughout episode #523.