Merry Christmas Mordecai Regular Show : Season 6 Episode 12
TV-PG Cartoon Network 23m
Aired: December 4th, 2014 @ 7:30 PM EST on Cartoon Network
Margaret returns to town for Eileen's Christmas party, which complicates things for Mordecai now that he is with C.J. -- and things get worse when Mordecai breaks C.J.'s heart.
