His death was announced by his daughter Savanah in aFacebookpost today.
He played the central character of Mark Petrie, the young horror film buff-turned-vampire hunter.
Kerwin continued acting throughout the mid-1990s, usually as a guest star on episodic TV.
Lance KerwinEverett Collection
By the end of the decade he had retired from acting to become a youth minister.
He later moved to Hawaii to work for the U-Turn for Christ ministry.
A 2021 GoFundMe page indicated Kerwin had fallen on hard times after suffering various health issues.
Lance Kerwin and Reggie Nalder in ‘Salem’s Lot’ (1979)Everett Collection
Along with Savanah, he is survived by his children Fox, Terah, Kailani and Justus.
Information on a planned after-life ceremony is expected in the coming weeks.