Wedding bells will ring in the Ghosts season 3 finale, as British soldier Nigel (John Hartman) and American revolutionary Isaac (Brandon Scott Jones) prepare to tie the knot in the episode titled "Isaac's Wedding."

But will cold feet get the best of Isaac? The episode's logline teases the groom-to-be's pre-wedding nerves, which are compounded by the arrival of a special guest, but who is that special guest? Only time will tell, but TV Insider spoke to star Richie Moriarty, who plays skewered Scoutmaster Pete, ahead of the episode for some insight into what viewers can expect.

As fans last saw, Pete boarded a flight to St. Lucia after discovering he could travel past the haunted border at Woodstone. While Moriarty couldn't elaborate on Pete's potential adventure there, he teases that Pete "plays a pivotal role in the wedding."

"I don't know how the Joes pull off what they pull off," Moriarty admits of what showrunners Joe Port and Joe Wiseman pull off with the storylines. "I think it's a delicate balance of heart and humor. And I think they pull it off again in the finale in a great way."