but instead the setting, with the actual plot being Candace, Perry and Dr. Doofenshmirtz's story, "The essence of story is that the characters are changed by what happens to them. Nothing ever changes the boys, they never learn anything, there's never any obstacles they have to overcome, everything just works out for them." Visual aspects and animation Rough Draft Studios in South Korea, Wang Film Productions in Taiwan, Morning Sun Animation and Synergy Animation in Shanghai and Hong Ying Animation and Hong Guang Animation in Suzhou animate the series in 2D Animation using the software package Toon Boom. Povenmire undertakes the bulk of production direction, along with Zac Moncrief and Robert Hughes. The series adopts artistic features from animator Tex Avery, such as geometric shapes integrated into characters, objects, and backgrounds. Povenmire says of this inclusion, "There's a little bit of Tex Avery in there-he had that very graphic style [in his later cartoons]." Triangles are featured as an easter egg in the background of every episode, sometimes in trees or buildings. Bright colors are also a prominent element of the animation. Marsh elaborates, "The idea at the end of the day was candy. One of the things that I think works so well is that the characters are so bright and candy-colored and our backgrounds are a much more realistic depiction of the world: the soft green of the grass, the natural woods for the fence. In order for all the stuff that they do to work, their world needs to be grounded in reality." The designers sought to keep their characters visually simple, so that kids "would easily be able to draw [them] themselves." Characters were also crafted to be recognizable from a distance, a technique that the creators say is based on Matt Groening's goal of making characters recognizable by silhouette. Cast Phineas and Ferb are voiced by Vincent Martella and Thomas Sangster, respectively. Sangster was one of many British actors cast, as Marsh lived in the United Kingdom for seven years and developed a fondness for the British. The rest of the cast includes Ashley Tisdale as their sister Candace; Bobby Gaylor as Buford van Stomm, who has a tendency to bully but is kept distracted by being included in the adventures; Maulik Pancholy as Baljeet Tjinder, a very intelligent boy who avoids being Buford's main victim by their participation in the adventures; Dee Bradley Baker