A fun interview with Phineas and Ferb creators/executive producers and stars Dan Povenmire (Dr. Heinz Doofenshmirtz) and Swampy Marsh (Major Monogram) at D23 Expo 2013.\r<br>\r<br> - Visit our Official Site\r<br> - Subscribe to our channel\r<br> - Follow us on Twitter\r<br> - Follow us on Facebook\r<br> - Follow us on Tumblr\r<br>\r<br>For press materials and promotional items use the address below:\r<br>\r<br>TV Equals\r<br>13636 Ventura Blvd #398\r<br>Sherman Oaks, CA 91423
