Guest Star :: John Hartman

 John Hartman has guest starred in 2 episodes of Young Sheldon.

  1. A Therapist, a Comic Book, and a Breakfast Sausage

    104. A Therapist, a Comic Book, and a Breakfast Sausage as Dr. Goetsch

    Aired November 16, 2017

    Mary and George take Sheldon to see a therapist when he goes five weeks without eating solid foods.
  2. Killer Asteroids, Oklahoma, and a Frizzy Hair Machine

    116. Killer Asteroids, Oklahoma, and a Frizzy Hair Machine as Dr. Goetsch

    Aired March 29, 2018

    After declaring his intention to walk away from science after losing the school's science fair, Mary takes Sheldon back to Dr. Goetsch who encourages him to pursue new avenues of interest.
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