Robert meets Marshall's family for the first time this Christmas, only for things not to be as jolly as they appear.
| Actor | Role |
|---|---|
| RRon BeecherGrandpa | Grandpa |
| KKristal BurkFitz | Fitz |
| KKim GrossmanKiki | Kiki |
| SSandy GulliverMona | Mona |
| AAndy HartEric | Eric |
| AA.J. LairdUncle Weathers | Uncle Weathers |
| TTyler LubinusMarshall | Marshall |
| BBrendan S. MertensRobert | Robert |