Be Cool, Scooby-Doo! (2015)

Season 1: Episode 22

After the ghost of the Cliff Bride begins haunting a wedding that the gang is attending, they must go to extreme lengths to try to keep the bride, who is very superstitious, from finding out. However, this proves very challenging when the ghost seems to appear everywhere that the bride is. Meanwhile, Daphne becomes very wrapped up in the ideology of wedding traditions and Shaggy worries obsessively about his best man speech.