Mel Costic, played by Mike Kellin is a character in the film Sleepaway Camp.
Mel is the owner and operator of Camp Arawak.
When people start dying at camp one by one, Mel continues to deny anything nefarious was happening. He tries to convince the other counselors that the camp was just having a series of bad accidents.
He eventually begins to suspect camper Ricky Thomas of being the person who is killing everyone as it seems that the people who are being killed are those who bully his cousin Angela Baker.
When his favorite counselor and, he hopes, love interest Meg is killed, he confronts Ricky, nearly beating him to death. Afterward he is killed by Angela who shoots him through the neck with an arrow.