DreamWorks Animation announced today that Stephen Colbert ("The Colbert Report"), Emmy AwardŽ winner Allison Janney (The Help, "The West Wing"), Ellie Kemper (Bridesmaids, "The Office"), Ariel Winter ("Modern Family") and Stephen Tobolowsky ("Californication," Dr. Seuss' The Lorax) have joined previously announced cast members, Emmy AwardŽ winner Ty Burrell ("Modern Family") and Max Charles (The Amazing Spider-Man, The Three Stooges) in the studio's Mr. Peabody & Sherman, which is now scheduled to be released on November 8, 2013. The film had previously been slated for March 14, 2014, a release date now planned for the studio's Me & My Shadow.

"These incredible casting additions have elevated Mr. Peabody & Sherman to a new level of excitement and we are truly fortunate to work with so many talented actors," said DreamWorks Animation Chief Creative Officer Bill Damaschke. "I'm certain that their collective passion and enthusiasm for the film will bring the classic characters of Mr. Peabody & Sherman to new life and thrill audiences of all ages when we open in November of next year."

Mr. Peabody & Sherman is directed by Rob Minkoff (Stuart Little, The Lion King) and produced by Alex Schwartz (Journey to the Center of the Earth, Bridge to Terabithia) and Denise Cascino (Megamind, Shrek the Third). It is being written by Craig Wright ("United States of Tara," "Six Feet Under") with revisions by Michael McCullers (Baby Mama, Austin Powers in Goldmember). Bullwinkle Studios' Tiffany Ward and Classic Media's Eric Ellenbogen are serving as executive producers on the film along with Jason Clark (Monster House, Stuart Little).

Based on Jay Ward's classic cartoon, Mr. Peabody is the world's smartest person who happens to be a dog. When his "pet" boy Sherman uses their time traveling WABAC machine without permission, events in history spiral out of control to disastrous and comical results. It's up to this most unexpected of father-son teams to somehow put things back on track before the space-time continuum is irreparably destroyed.