In the PLAN 9 episode 3.04, Chris Young is listed in the credits as "Dr. Tom". Although the character looks like an alternate version of "Carbuncle", its really a reference to the character, "Lugosi's Double" (which is uncredited in the movie and played by Tom Mason) " from Plan 9 from Outer Space (1959). "Dr." Tom Mason was in reality, Director Ed Wood's wife's chiropractor, who replaced the recently deceased Bela Lugosi.
Coinciding with the "Dr. Tom" listing above, Thom Lange would frequently list others as "Dr. Tom", whenever anyone doubled for anyone else. This is much like Sam Raimi used "Fake Shemp" in the EVIL DEAD movies.