Derek s age+*referred to by Character Ages The character ages on Teen Wolf are notoriously difficult to pin down, as the show does not seem to place much emphasis on creating a ... Derek Hale+age 22 (S1-S3B), 23 (S3B-S4), 24 (S6B) Timeline TV Season vs Academic Calendar With the exceptions of the first two seasons which take place in the same semester and season 6B which takes ...