Wyatt Knight, 56, an actor best known for portraying Tommy Turner in the three "Porky's" films, committed suicide Oct. 25 in Maui, said Eileen O'Farrell, a family spokeswoman.
An autopsy determined that Knight died of a self-inflicted gunshot wound, the Associated Press reported.
In 2003, Knight underwent a bone-marrow transplant for non-Hodgkin's lymphoma and the resulting radiation therapy left him in physical and emotional pain, according to a statement from the family.
"He was tired of the pain and after much contemplation, chose to end his life in a beautiful and a serene place," the statement said. "His family and friends are devastated."
Knight was relatively new to acting in 1981 when he appeared in "Porky's," a raunchy low-budget comedy about a group of lusty, fun-loving high school boys. He reprised the part in both sequels, "Porky's II: The Next Day" (1983) and "Porky's Revenge" (1985).