"Shonda [Rhimes] informed my agent today that Pete wont be returning for season 6. It was a great 5 yrs. R.I.P. Pete Wilder," Daly tweeted late Tuesday.
No further explanation was given for the decision.
Starring Kate Walsh, the show is a spinoff of Shonda Rhimes' flagship doctor drama "Grey's Anatomy."
Celebrity Families of 2014 [PHOTOS]