Ernie Hudson to Play Poseidon On 'Once Upon a Time'

Ghostbusters star Ernie Hudson has signed on to appear as King Poseidon in the ABC series “Once Upon A Time” according to Deadline. Hudson will star as father of Merrin Dungey’s Ursula. In addition, JoAnna Garcia Swisher will reprise her role of Ariel in the episode. “Once Upon A Time” will return March 1, 2015. The series airs Sundays at 8 P.M. on ABC.