He is perhaps best known for his role as Barry Lockridge on the Irwin Allen television series Land of the Giants which aired from 1968 to 1970.

Arngrim was born in Toronto, Ontario, Canada, the son of actress Norma MacMillan and Thor Arngrim.

[1][2] He is the elder brother of actress Alison Arngrim, who has alleged that he regularly molested her throughout her childhood.

[3] Arngrim co-wrote two songs with Warren Zevon on the album Transverse City.

This article about an American television actor born in the 1950s is a stub.