Jack Grinnage as Ron Updyke

Jack Grinnage is a character actor who works mostly in television. He portrayed Ron Updyke on Kolchak, the Night Stalker.


Selected FilmographyEdit

Father Knows Best - 1954

Meet Corliss Archer - 1954

Rebel Without a Cause – 1955

King Creole – 1958

The Rifleman – 1959

Spartacus – 1960

Gunsmoke – 1960

Kolchak, the Night Stalker – 1974

Hotel - 1983

Scrubs – 2009

Ghost Girls – 2013



  • As of 2015, he is the only surviving member of the main cast of Kolchak, the Night Stalker

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.