William Daniels, has celebrated a milestone birthday, turning 98 years old on March 31 and looking extremely good while doing ...

At 98 years young, Daniels told PEOPLE he still enjoys his work. "You have to kind of keep at it, otherwise you just fade away," he said, adding of the enduring love fans have for him, "You have to be ...

This seems to be very special that a couple who both are actors live so long and together for so long, it seems to be unique.

William Daniels and his wife, Bonnie Bartlett Daniels, tell PEOPLE how they plan to celebrate the actor's milestone 98th ...