The story of Will Friedle's journey to becoming Terry McGinnis is particularly fascinating, especially when we take into account that he'd never done any voice or animation work before "Batman Beyond." At the time of his casting, he was best known for playing Eric Matthews in the sitcom "Boy Meets World." In fact, it's almost an anomaly that he secured such a big-time voice role on his first attempt.

Friedle, though, took the opportunity with both hands, as he transformed his career with this pivotal part. While he might've started out in live-action shows and movies, he's since become a prominent voice actor. He's gone on to voice iconic characters such as Ron Stoppable in "Kim Possible," Deadpool in "Ultimate Spider-Man," Lion-O in "Thundercats," and Bumblebee in several "Transformers" productions. Friedle credits his "Batman Beyond" co-star Kevin Conroy becoming his mentor and showing him the ropes. "At first, I had no idea what to do, sitting literally slouched in front of the microphone," he explained to Den of Geek. "And Kevin's going, 'Alright, roll your shoulders back.' He mentored me in the voiceover world like Bruce Wayne."