Guest Star: Hermie Castillo
The Planetarium Collision
Season 12, Episode 5 - Aired October 18, 2018When Sheldon feels that Amy's job isn't leaving her enough time to work with him on super-asymmetry, he goes behind her back and unwittingly sabotages her career in the process. Meanwhile, Raj is unhappy at the prospect of Howard joining him in hosting a show at the planetarium.
Appeared as Colin
Other Shows
Hermie Castillo guest starred in 1 episode of Young Sheldon.
611. Ruthless, Toothless, and a Week of Bed Rest as Toby
Aired February 2, 2023
Sheldon learns that Dr. Linkletter and the university are building a rival database. Meanwhile, Georgie is swamped at work after Mandy is put on bed rest.