Jean-Louis is a pilot, and his wife is a flight attendant. Due to this, Castiel's parents are often away from home. It is also the reason Castiel is legally independent.
Castiel's parents first appear in episode 21. As Mrs. Shermansky first invited them to the school's Open House Day, they said they couldn't come, because they didn't have time due to work. Hovewer, they agreed to visit after the principal insisted, like Nathaniel had suggested to her.
Castiel's parents don't get along well with Nathaniel's parents, as Adelaide and Francis were somewhat rude to them. But, they get along well with other parents and students they met, and are nice and friendly.
Jean-Louis has short black hair, and black eyes.
He is wearing a white shirt with a black tie, and jeans with a brown belt.
Jean-Louis is rather quiet and thoughtful. He is calm most of the time, even when his wife and son get angry or into arguments. He also seems less talkative than his wife, but is very polite.