Which 2014 animated musical television special starred the actor who also played Frank Costanza on "Seinfeld"?
How Murray Saved Christmas: How Murray Saved Christmas is a 2014 animated musical television special, directed by Peter Avanzino and written by Mike Reiss. How Murray Saved Christmas:  The voice actors include Jerry Stiller, Sean Hayes, Kevin Michael Richardson, Jason Alexander, John Ratzenberger and Dennis Haysbert.
i don't know