- Born
- Birth nameJack Eugene Stewart
- Jack Grinnage was born on January 20, 1931 in Los Angeles, California, USA. He is an actor, known for La Fureur de vivre (1955), Dossiers brûlants (1974) and Wolf Larsen (1958).
- As of October 2016, he is the only surviving cast member of Kolchak, the Night Stalker.
- Turned down a part in Forbidden Planet to work on Rebel Without a Cause.
- In real life, he became a close friend of Darren McGavin and his third wife, Kathie Browne.
- Best known as the nerdy, effete News Service Reporter Ron Updyke in Kolchak, the Night Stalker.
- Attended Los Angeles City College.
Contribute to this page
Suggest an edit or add missing content