Steve Burton played Jason for 21 years until 2012, when the character was presumed dead.
"It would be ridiculous for me to mimic (the way Burton played him)," Miller said in a recent interview with the Associated Press.
He has added his trademark sense of humor to the role of Jake.
"It's more fun in this genre whenever you can add some lightness to it or make it funny," he said. "You don't get a lot of room for that, so I usually look for it. It's a scary position for this guy who is so lost and doesn't know who he is, [so] you match that with a little bit of humor."
Despite his years on All My Children and The Young and the Restless, and three Emmys wins for playing the role of Billy Abbott, I feel like I am just now discovering Billy Miller for the first time. His is off the charts, and he is perhaps the most watchable actor in daytime. Perhaps my own bias about who I thought the character of Billy Abbott "should" be on Y&R clouded my judgment before, and never allowed me to appreciate Miller as an actor the way I have in the past two months. I always thought he was good, but now understand that he is one of the best.
Miller looks forward to the day when Jason's past collides with his present.
"It really does offer up some great story if we decide to go there," he said. "I really hope that's how we explore this because I feel like that might be more my strength."
He is particularly interested in working with seven-time Emmy winner and longtime GH star Anthony Geary (Luke Spencer), saying, "I can't wait for that acting class."