Movies (Acting Roles)
Sorted by Release DateBob Ross: Happy Accidents, Betrayal & Greed
John Thamm was 83 in Bob Ross: Happy Accidents, Betrayal & Greed as 'Self - Artist and Friend'.Movie Released: Wed, Aug 25 2021
TV Shows (Acting Roles)
Sorted by Release DateAges in TV shows are based off the first air date and may not be accurate. View individual episode details for accurate ages
The Joy of Painting
John Thamm was 45+ in The Joy of Painting as 'Himself'.TV Show Released: First Air Date
Tue, Jan 11 1983
Tue, Jan 11 1983