voice was portrayed by Mona Marshall in the pilot episode, Cree Summer in the first season, and Holly Berger in the second season. In the commercials for KFC in Australia, she was voiced by Robyn Moore. Erica Horn provided her voice in Inspector Gadget Saves Christmas. From 2001 to 2005, she was voiced by Tegan Moss. Tara Strong voices her in the 2015 series. In the first live action film she is portrayed by Michelle Trachtenberg. Caitlin Wachs portrays her in the sequel. Brain Brain is Gadget and Penny's shy but intelligent, sweet, lovable and curious 4-(later 5)-year-old dog. He is the only one who knows that Penny is the one who really saves the world. Brain usually has the job of keeping Gadget safe on his missions while Penny investigates M.A.D's crimes. He usually disguises himself when following Gadget, which often causes Gadget to think he's a M.A.D Agent. He is absent in Gadget and the Gadgetinis and only shows up in pictures. The reason given for why he is absent is because after all the years of secretly helping Gadget, he has become phobic of gadgets, Gadget, and the word itself. He ran away to a riverside shack to get away from Gadget. He returned in the episode, No Brainer, where Penny made him a translation collar in order to help find Gadget. However, he does return in later spinoffs. His voice was played in the original series by Frank Welker, Maurice LaMarche in Gadget and the Gadgetinis, and Scott McCord in the 2015 series. Lee Tockar voiced him in Inspector Gadget's Biggest Caper Ever. In the first live action film he is voiced by Don Adams. In the sequel he is voiced by Jeff Bennett. In the Australian KFC commercials he was voiced by Keith Scott. Chief Quimby Chief Quimby is Gadget's boss and the chief of the metro city police (Roverton Police Department In The Live Action Disney films). He usually pops up near the beginning of each episode to give Gadget a sheet of paper describing his mission. Once Gadget finishes reading them, the paper self-destructs and blows up in Quimby's face in a parody of Mission: Impossible. He appears at the end to congratulate Gadget and give him full credit for stopping Dr. Claw. He is unaware that Penny did all the work, even though she always calls him. In Gadget and the Gadgetinis,