Phineas Flynn (2nd Dimension)

Phineas Flynn is a kid in the Phineas and Ferb: Across the 2nd Dimension movie. Stuck in a area which is ruled by Dr Heinz Doofenshmirtz, he has grown up without Summer Vacation and has never heard of it.

History
Phineas, having never heard of Summer Vacaction, has most probably grown up in Doofenshmirtz rule, which has turned him into a conformist, as he will never think of breaking the mold created around everyone in the 2nd Dimension. He likes to stay out of trouble and play Doofopoly while wearing his Dooferals with his stepbrother, Ferb

When he was little, his pet platypus suddenly went missing, never to be heard of again.