Phineas & Ferb Co-Creators, Dan Povenmire (left) & Jeff "Swampy" Marsh (center) at the Disney Channel's Comic-Con booth. In addition to writing and directing, Povenmire voices Dr. Heinz Doofenschmirtz and Marsh plays Major Monogram. Phineas' voice, actor Vicent Martella (right), joins Povenmire and Marsh.
Photo by Joel Feria