Sid is a Scientologist.
Sid turned down the role of Marsellus Wallace in Pulp Fiction (1994), telling director Quentin Tarantino the title of the film sounded "too TV."
Sid filmed all of his scenes for Little Big Top (2006) while suffering from walking pneumonia.
Sid formed his own production company, The Haig Group, with his future wife Susan Mosesian, in 2006.
Sid was the drummer for the T-Birds band in the late 1950s.
Sid first started performing at the age of 7, being a paid dancer for a children's Christmas program.
Sid was married to his assistant, Susan L. Mosesian, on November 2, 2007.
Sid was a guest of honor at director/musician Rob Zombie's wedding. According to Sid, Rob was awed at having "Dragos" there as he and his brother watched Jason Of Star Command on a regular basis as kids.
Sid has found new popularity as the evil Captain Spaulding, in horror movies House Of 1000 Corpses (2003) and The Devil's Rejects (2005).
Sid appeared in two movies with Pam Grier, both having "brown" in their titles: Foxy Brown (1974) and Jackie Brown (1997).
Sid is a trained and certified hypnotherapist.
Sid is 6 feet 4 inches tall.