|Michael O'Donoghue (1940 - 1994)
a.k.a. Mr. Mike
Mr. Cheryl Hardwick (pianist)
|Saturday Night Live (Oct. 11, 1975) [Instructor]: Dies of a heart attack while teaching English phrases to John Belushi. (Thanks to Tommy)
Saturday Night Live (Oct. 25, 1975) [Square Dancer]: Shot to death, along with all the other dancers, when the dance caller (Dan Aykroyd) instructs them to shoot each other.
Saturday Night Live (Dec. 20, 1975) [Dead Professor]: Shot in the head (off-screen) by Candice Bergen, shortly before the beginning of the sketch; his body is shown afterwards lying on the couch as Dan Aykroyd and John Belushi investigate (while deliberately overlooking all the obvious clues).