"There has never been a real use for this voice ever," LoCascio said. "I'm glad I can finally put it to good use."
With no agent or voice-over experience, LoCascio said even he's not 100 percent sure how he got the part.
"I literally just heard there was a game coming, so I called up the company, left a message on the president's answer machine (as Marty) and I didn't hear anything back," LoCascio said. "So then I called the vice president and I thought, All right, I'll let it sit. Two weeks later, I got an email asking if I could send an mp3 of me doing Marty McFly."
Then he got the call he had been preparing for since, well, 1985 to be exact.
"I was overwhelmed and excited as hell," he said. "I was ecstatic. The first thing I did was was yelled and danced with my roommates. Then I sat back down and went, 'Oh sh**, not only do I have to live up to Michael J. Fox, but I've never done anything really quite on this scale. The reality of it set in, and I didn't sleep for a really, really long time."
Luckily, LoCascio has been preparing for the role his whole life.
"When I was younger, I sounded quite a bit like him when I would get upset," LoCascio told Asylum. "It was not so much a voice as it is now. Back then it was just how I sounded when I got anxiety ridden. So if I was asking out a girl, I would sound too much like Marty and it was never the most attractive thing to have in high school."
As for today? The actor and filmmaker, whose short films are housed under his media and film studio BrontoCo, has a method for creating the signature sound.
"It's a matter of almost making myself artificially nervous," LoCascio said describing how he does Marty's voice. "Your throat constricts when you get nervous. You get that scratchy tightness, so I'm just making myself vocally uncomfortable."
"He was very shy so I didn't want to say anything because I'm sure he didn't want to be bothered more than anyone else, so I didn't try to engage him too much, but when I went to the studio and did the lines, he lit up," he said. "He said [in LoCascio's 'Doc Brown' voice], 'Wow, that's incredible! You sound just like Michael!' And it was weird because he turned into Doc for three seconds and went back to being very shy and quiet."
The new game launches later this month and has a five-episode run. LoCascio said he's grateful for his big break and hopeful it will lead to something even greater that allows him to just give fans like him an exciting story.
"Everyone keeps making the joke, what's next? 'Family Ties: The Game'"? he said.