Santa narrates the story of Buddy's travels to New York City to meet the father he never knew he had. Along the way his unrelenting cheer transforms the lives of everyone he meets and opens his father's eyes to the magic of Christmas.
| Actor | Role |
|---|---|
 Jim ParsonsBuddy (voice) | Buddy (voice) |
 Mark HamillWalter (voice) | Walter (voice) |
 Kate MicucciJovie (voice) | Jovie (voice) |
 Ed AsnerSanta (voice) | Santa (voice) |
 Max CharlesMichael Hobbs (voice) | Michael Hobbs (voice) |
 Fred ArmisenChadwick (voice) | Chadwick (voice) |
 Rachael MacFarlaneEmily Hobbs (voice) | Emily Hobbs (voice) |
 Kevin Michael RichardsonFake Santa #2, Jerry Hobbs (voice) | Fake Santa #2, Jerry Hobbs (voice) |
 Jay LenoFake Santa #1 (voice) | Fake Santa #1 (voice) |
 Gilbert GottfriedMr. Greenway (voice) | Mr. Greenway (voice) |
 Steve HigginsMatthews (voice) | Matthews (voice) |
 Matt LauerMr. Sea Serpent (voice) | Mr. Sea Serpent (voice) |
 Kevin ShinickFake Santa #4 (voice) | Fake Santa #4 (voice) |