Caleb Widogast

Caleb Widogast is a Human Wizard of the School of Transmutation. He is played by Liam O'Brien.

Nott
Caleb and Nott are seen sharing a room together at the beginning of the first episode, and seem to consider each other friends. Caleb, more than once, mentioned that Nott had saved his life, and the two of them covered each other's expenses throughout their drinking escapades and their trip to the Carnival