Conversation so far:
What role did Dan Povenmire play in Phineas and Ferb?
Co-creator
Was Dan Povenmire a writer or illustrator on the show Phineas and Ferb?
Dan Povenmire is the co-creator of the Disney animated series Phineas and Ferb.
What was Dan Povenmire's role on the show Phineas and Ferb?
Dan Povenmire is the co-creator.
How else was Dan Povenmire involved in the show Phineas and Ferb?
Dan Povemire also voiced the character Heinz Doofenshmirtz.

Question: Was there anything special in particular on any of the episodes?
Self-contained rewrite: Was there anything special in particular on any of the episodes of Phineas and Ferb?