The Christmas Special

Edward Asner (born November 15, 1929), commonly known as Ed Asner, is an American film, television, stage, and voice actor and former president of the Screen Actors Guild, primarily known for his Emmy Award-winning role as Lou Grant on both The Mary Tyler Moore Show and its spin-off series, Lou Grant. In 2009, he starred as the voice of Carl Fredricksen in Pixar's award-winning animated film, Up...(Wikipedia)

Mark Richard Hamill grew up in California, Virginia, New York and Japan; his father was a captain in the United States Navy. He played a continuing role (Kent Murray) in the soap opera "General Hospital". Real fame came with his film debut with the hero role of Luke Skywalker in Star Wars (1977), Star Wars: Episode V - The Empire Strikes Back (1980) and Star Wars: Episode VI - Return of the Jedi (1983)...(imdb)

Credits include: Dead Poets Society, RoboCop, Girl, Interrupted, Broken Arrow and Rambo III

Thomas Haden Church won an Oscar nomination for his ripe comic turn as Jack, the aging and philandering actor in the 2004 comedy Sideways. Church was already known to TV audiences as Lowell Mather, the none-too-bright Nantucket mechanic on the situation comedy Wings (1990-95). He left Wings after its sixth season to star as the conniving newlywed Ned in the sitcom Ned and Stacy (1995-97). In the movies he played one of the Clanton brothers in the western Tombstone

Credits include: Resident Evil: Degeneration, Planes, Superman: Red Son, Regular Show: The Movie and Clarence

Credits include: Regular Show and Regular Show: The Movie

Credits include: Regular Show, Batman: Gotham by Gaslight, Superman: Red Son, Batman: Return of the Caped Crusaders and Regular Show: The Movie

Credits include: Regular Show: The Movie, Stick Hockey and Starter Pack

Credits include: Close Enough, Just Set Up the Chairs, Really Real Wrestling, Jinx and Terror Tales of the Park IV

Credits include: Regular Show, Regular Show: The Movie, 2 in the AM PM, The Power and Just Set Up the Chairs

Credits include: Don, Starter Pack, Grave Sight, Over the Top and Terror Tales of the Park II

Credits include: Merry Little Batman, Saving Marriage, Prank Callers, First Day and See You There