'General Hospital' Star Maurice Benard to Guest Star on 'Castle'

Jonathan Silverman, Maurice Benard and Nathan Fillion on the set of Castle.

General Hospital star Maurice Benard revealed on Instagram that he would be making a guest appearance in an upcoming episode of ABC primetime hit Castle.

"On my way to film @Castle_ABC Love the show excited to do something different," Benard posted on Instagram on Friday morning. Later in the day, he updated fans and posted a photo with Jonathan Silverman, and Castle star Nathan Fillion (ex-Joey Buchanan, One Life to Live). "It was a blast working with these two pros and the well oiled machine that is @abccastle @natefillion @jonnysilverman"

His appearance on Castle has not yet been scheduled.