In middle school, Goff's career started with animation. However, he soon switched to voice acting as he had been a student of theater for many years prior. He began training in animation voiceover with Bob Bergen, as Bergen's youngest student at the time and the first minor to take his course. From there he went on to be taught by such names as Richard Horvitz, David Sobolov, Charlie Adler, Debi Derryberry, and Mick Wingert. Goff provided his voice for a number of online animation and video game projects, slowly moving to more mainstream media as the years went on. In the fall of 2016, Goff joined the cast of Five Nights at Freddy's as the titular role of Funtime Freddy and Fredbear. Since then, he has appeared at numerous conventions across the country, such as Anime Expo and L.A. Comic Con. He has also cast ADR for multiple films, such as F the Prom, Traces, and Near Extinction: Shangri-La.