The Keller family, including the parents and their three adult children, decide to take a European river cruise touring the Christmas Markets over the holidays, and each sibling is going through their own life challenge.
| Actor | Role |
|---|---|
 Jonathan BennettDylan Keller | Dylan Keller |
 Brandon RouthCal Keller | Cal Keller |
 Eden SherEmory Keller | Emory Keller |
 Anand Desai-BarochiaWilliam | William |
 Laurel LefkowAnne Keller | Anne Keller |
 Nigel WhitmeyBen Keller | Ben Keller |
 Frédéric BrossierNoah | Noah |
 Jill WinternitzFelicity | Felicity |
 Harry DitsonRon | Ron |
| BBettina KenneyHilda | Hilda |
 JR EspositoTrey | Trey |
| DDerek MorseBuddy | Buddy |
| KKristi KirilovaLauren | Lauren |
 Orlin PavlovLauren's Boyfriend | Lauren's Boyfriend |
| CCharlotte KremplMia | Mia |
 Kate NicholsNic | Nic |
| HHerb HundtGunter | Gunter |