|Rancho Notorious (1952) [Frenchy Fairmont]: Shot to death (off-screen), along with Arthur Kennedy, in a gunfight with some outlaws. The film ends with Mel and Arthur riding off into the distance, but the closing theme song/narration states that they were killed that same day.
Eaten Alive (Death Trap; Horror Hotel; Legend of the Bayou; Murder on the Bayou; Starlight Slaughter) (1976) [Harvey Wood]: Throat slashed with a scythe by Neville Brand, then gets eaten by the giant alligator after Neville pushes him into the swamp. (Thanks to Sammy)
L'Immoralita (1978) [Vera's Husband]: Commits suicide (off-screen) by shooting himself in the chest; his body is shown afterwards when Karin Trentephol enters the room and discovers him. (Thanks to Andrea)
The Great Alligator (Il Fiume del grande caimano; Alligators; Big Alligator River) (1979) [Joshua]: Shot to death with a flaming arrow by the natives. (Thanks to Johan and Michael)
Screamers (L'Isola degli uomini pesce; Island of the Fishmen; Something Waits in the Dark) (1979) [Radcliffe]: Throat ripped out by the creature. (Note: Mel's scenes were added for the 1982 US release Screamers, and were not present in the original 1979 European release.) (Thanks to Michael)
The Visitor (Stridulum) (1979) [Dr. Walker]: Pecked to death by birds (off-screen). (Thanks to Michael)
Falcon Crest: Ashes to Ashes (1984) [Phillip Erikson]: Killed in a plane crash; we learn in the following episode Requiem that he did not survive the crash. His body is not shown. (Thanks to Johan)