<P> Carla (voiced by Jennifer Hale) is one of the interns working for the O.W.C.A. . She bears some resemblances to Carl (possible could be her brother or cousin), as her boss Admiral Acronym stated that she comes from an' entire family of unpaid interns' . She usually gives in the intelligence of whatever plans that Poofenplotz is up to . </P> <P> Professor Esmeralda Poofenplotz (voiced by Amanda Plummer) is an old mad scientist and the nemesis of Agent Pinky, Isabella's pet Chihuahua . She is known for her silly attempts for worldwide domination . Her known schemes so far involve replacing handbags, stealing royal jelly, and searching for strong hairspray (her favorite is "Stiff Beauty" hairspray, which originally was only used by clowns). Needless to say, because of her somewhat arrogant personality, Poofenplotz has failed to know about the flaws of her schemes . And because of that, it has allowed Pinky to defeat her in return, leaving an humiliated Poofenplotz to yell out, "Curse you, Pinky the Chihuahua!", similar to how Heinz Doofenshmirtz says whenever his plans get foiled by Perry the Platypus . </P> <P> Love Händel is a rock band idolized by many in the Danville Tri-State Area, first seen the episode, "Dude, We're Gettin' the Band Back Together!" Lawrence Fletcher and Linda Flynn shared their first kiss at a Love Händel concert . Shortly afterward, plagued by infighting caused by the pressures of a dwindling fanbase, Love Händel split up . Lead Singer Danny (voiced by Jaret Reddick) became the owner of Danny's Music Shop . Bass Player Bobbi Fabulous (voiced by Carlos Alazraqui) became the owner of Bobbi's Fashion Salon and Linda's hairdresser . Sherman "Swampy" (voiced by Steve Zahn) ended up working at the Danville Public Library, believing he had lost his sense of rhythm . Eventually all three members are convinced to reunite for a concert in the Flynn / Fletcher's backyard, in which they sing their hit song, "You Snuck Your Way Right into My Heart ." Love Handel occasionally reappears in other episodes and in the movie where they sing their songs . </P> <P> Monty Monogram (voiced by Seth Green) is Major Monogram's son and has been working in O.W.C.A. since "Minor Monogram". Vanessa Doofenshmirtz seems to become interested in him after she broke up with Johnny, and it is possible that he is slightly interested in her too because he winks at her before leaving . They have coffee together in "Sipping with the Enemy", at which point they apparently begin to date one another . In "Minor Monogram" he has recently graduated from the "High School Without a Cool Acronym" (H.S.W.C.A.) and he really wants to fight evil following his dad's footsteps . Due to the rivalry between his father and Dr. Doofenshmirtz, he and Vanessa try to keep it secret from the two of them, aided by Perry and Carl (though the latter briefly blackmailed Monty in hopes of getting his help in earning Major Monogram's approval). In the special Phineas and Ferb Save Summer, Monty played a major role as he attempts to help rescue all of the captured agents and defeat the villains of L.O.V.E.M.U.F.F.I.N. in their plan to take over the world by sending it into a new Ice Age . </P>

Who are the voices on phineas and ferb