John Hartman
TVography: John Hartman
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Ghosts Network: CBS Premiere Date: October 7, 2021 Character Name: Nigel Chessum |
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Scorpion Network: CBS Premiere Date: September 22, 2014 Character Name: Kaldor (Season 3 - Present) |
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Trial & Error Network: NBC Premiere Date: March 14, 2017 Character Name: Mitchell (Season 1) |
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Young Sheldon Network: CBS Premiere Date: September 25, 2017 Character Name: Dr. Goetsch (Seasons 1 & 3) |
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