“She’s going to have a fun part,” Parrish said of Mona’s appearance in PLL Season 5, Episode 13. “She’s going to be the Ghost of Christmas Past, Present and Future. She gets to mess with Alison, and in a fabulous costume, I might add.”
The synopsis for “How The ‘A’ Stole Christmas” reveals that Aria, Emily and Hanna will try to clear Spencer’s name after she was arrested for Bethany’s murder.
“When we last saw her, she was arrested for Bethany’s murder and she is out on parole, but it is looking like a very grim holiday season for Spencer when we see her,” producer Marlene King said of the PLL Season 5 Christmas special. “She’s definitely the Scrooge of the episode. She has no desire to celebrate anything happy or merry about Christmas. So the Pretty Little Liars are gifted with a treasure map of sorts that give them hope to find a way to give Spencer a merry Christmas.”
Of course, since it’s the holiday season, there will be plenty of sweet moments for the various Pretty Little Liars Season 5 couples in Tuesday's Christmas special. Hanna will share an adorable dance with Caleb, while spoilers reveal that there will be some major developments in Paige and Emily’s relationship.