Professor Flan got his name because he "may be a man, but has the head of a flan". He was accidently turned into an actual flan by Kyle thus, resulting him to be expelled. He was later on freed by Fanboy and Chum Chum when mistaken as a leftover. He is now also the assistor into helping Kyle get readmitted. However, he's always denying the readmission due to something going wrong, but also harbours a secret releationship with Kyle.
Professor Flan have golden colored skin with orange and red jam spread on his head. He wears a grayish black tuxedo with a white tie and gray cuffs, high black boots, white gloves, and has a black top hat with a monocle. He also has a mustache.
- Professor Flan usually addresses Kyle by his full name.
- He always has a unique way for denying a readmission. Ex: Stamping "DENIED" on Kyle (Crib Notes) and getting swallowed by a three-headed dog (Kids in the Hall).
- His full name was said for the first time in "Brain Freeze", and appears to be a long tongue twister.
- When he is in the sun for too long, his head sizzles. (Kids in the Hall).