1461 Days of GIFs, Day 1204: Caleb’s Twin [AP Bio]

While there's some quirkiness to many of the AP Bio cast, each have their own particular brand: Allisyn is the sensual savant, Grace is the future serial killer, Eduardo and Viktor are bosom buddies, Helen is the folksy tale-spinner with a strange past. Caleb's seems to be distinctly in the "disturbed loner who will eventually…