|Star Trek: The Man Trap (1966) [Darnell]: Has the salt drained from his body (off-screen) by the alien (Jeanne Bal/Sharon Gimpel). His body is shown afterwards when DeForest Kelley and William Shatner discover him.
Barnaby Jones: A Gold Record for Murder (1974) [Raymond Walding]: Poisoned with a drug overdose by Marjoe Gortner.
One Life to Live (1998/possibly early 1999) [David Renaldi]: Dies (off-screen) of amyotrophic lateral sclerosis (Lou Gehrig's Disease). (The character's death was established after Michael's real-life death from the same cause.)