<P> Carl the Intern (Tyler Alexander Mann) is Major Monogram's young unpaid intern of the O.W.C.A. (Organization Without a Cool Acronym) in charge of video taping Monogram when he is being interviewed and talking to Agent P. He is a bit careless, wears glasses, and sometimes forgets to focus the camera correctly . </P> <P> The Fireside Girls are a group of ten girl scout - like girls led by Isabella in troop 46231 . Isabella and the other Fireside Girls usually help Phineas and Ferb in their projects which, in turn, are at times created to help the Fireside Girls with a humanitarian cause . </P> <P> Other members of the troop: </P> <Ul> <Li> Gretchen (voiced by Ariel Winter) wears glasses and has short auburn hair . She is second in command in the troop and the first (besides Isabella) who had been addressed by name . </Li> <Li> Holly (voiced by Cymphonique Miller, Diamond White, Dana Davis) </Li> <Li> Katie (voiced by Isabella Acres, Soleil McGhee) </Li> <Li> Milly (voiced by Isabella Murad, Dannah Phirman) </Li> <Li> Adyson Sweetwater (voiced by Madison Pettis) The second member of the troop to be addressed by name, and the first to have been given a last name as well . </Li> <Li> Ginger Hirano (voiced by Tiffany Espensen, Michaela Zee, Ming - Na) The younger sister of Candace's best friend Stacy . She has a crush on Baljeet . </Li> </Ul>

Who does the voice of phineas and ferb characters