"If anyone wanted to do a movie and they think I'd still fit for him, I think that'd be great," Selleck tells PEOPLE

Credit: Ray Tamarra/WireImage

Tom Selleck would be just fine putting on Thomas Magnum’s Hawaiian shirt again.

“If anyone wanted to do a movie and they think I’d still fit for him, I think that’d be great,” the former Magnum, P.I. star says in the current issue of PEOPLE.

But that doesn’t mean Selleck – whose ninth Jesse Stone film Lost in Paradise premieres Sunday on Hallmark Channel – has been looking for Magnum-esque roles since the show went off the air in 1988.

“It’s not that I have to do characters that are deliberately different, but you’ve got to take risks. Every part should scare you,” he says. “I’ve been blessed by a very long career, and, as time has gone on, I have proven I can do comedy, drama, I’ve even played General [Dwight D.] Eisenhower, which I thought they were crazy to let me do.”

There is one genre Selleck, 70, says he’s not sure he would want to tackle.

“I haven’t taken on any Shakespeare,” says the Blue Bloods star. “You can’t expand too far just to prove you could play something that you probably shouldn’t. You’ve got to know your instrument.”

For more from Selleck, pick up the latest issue of PEOPLE, on newsstands now