Bittersmoke

Professor Bittersmoke is an elderly male potion teacher at Cloud Tower. He appears primarily in the Winx Club Comic Series and mentioned in the animated series.

Appearance
He has long outward hooked nose. He has light skin, and dark eyes. He is shown to have black hair that is starting to turn grey.

Civilian
He wears thin, small, round glasses. He wears a red scarf that wraps around his neck like a collar. He wears dark robes and a cap with two cotton balls on the ends.

Pajamas
Bittersmoke wears a long, teal nightgown and night cap.

Personality
He has been shown to be kind to his students, but strict when he has to be when their misbehaving. Though he is rarely respected by students at Cloud Tower. He claims also to have some kind of sixth sense in finding monsters, which Griffin dose not take seriously or she just believes it's not true. He has also been shown to be helpful as he tries to stop a monster on the lose that the Trix created, with the rest of Cloud Towers staff members.

He is revealed to be a sleepwalker in the comics and has to be locked in his bedroom at night to keep him from roaming the castle.

Season 1
Bittersmoke makes his first appearance in Issue 7: The School for Witches teaching a potions class, during said class a girl named Rachel inhales potion fumes turning into a crocodile. He has her return to her room, saying that she will return to normal the next full moon. Later witches in the potions class fool around and Bittersmoke scold them, that is when he mentions a forbidden book. He is later seen getting scolded by Griffin because of his mention of a forbidden book, Griffin tells him how dangerous those books are and how he can be kicked out of Cloud Tower if he mentions them again. Later Icy delivers Bittersmoke his food for the night and doesn't lock his door, as she over heard that Bittersmoke sleep walks and he could lead the Trix's to the forbidden book. At midnight Bittersmoke sleep walks out of his room going to the forbidden books, and the trix find the secret library as Bittersmoke returns to his room, still sleep walking.

Bittersmoke makes his appearance half way into Issue 10: The Revelation when the monster the Trix created goes out of control, with Griffin, Ediltrude, and, Zarathustra, Bittersmoke helps attack the out of control monster. The monster absorbs their energy and the energy hits them back, their energy slightly drained. Bittersmoke later watches the monster break out of Cloud Tower.

Magic Abilities
He may know some basic, first-level spells that all wizards can use, such as telekinesis, transmuting objects, and fixing minor messes.