"The Good Dinosaur" will feature "Raising Hope" star Lucas Neff as Arlo, John Lithgow as Poppa and Frances McDormand as Momma.

Arlo's siblings will be voiced by Bill Hader, Judy Greer and Neil Patrick Harris.

Tony winner Lithgow was last seen on Broadway in a Tony-nominated performance in The Columnist. The Tony and Emmy winner's stage credits also include All My Sons, Dirty Rotten Scoundrels, Sweet Smell of Success, The Front Page and Beyond Therapy. His film work includes "The World According to Garp," "Terms of Endearment" and "Shrek," and his TV credits include "Third Rock From the Sun," "Dexter" and "How I Met Your Mother."

Tony and Oscar winner McDormand's stage credits include Awake and Sing!, A Streetcar Named Desire, The Country Girl and Good People. Her film work includes "Fargo," "North Country," "Burn After Reading," "The Man Who Wasn't There" and "Miss Pettigrew Lives for a Day."

Harris has performed on Broadway in Assassins and in the New York Philharmonic production of Company. He is a three-time Emmy Award winner for his guest-starring role on "Glee" and as host of the 63rd and 65th Annual Tony Awards. He also served as host and producer of the 61st Primetime Emmy Awards, as well as the 66th and 67th Annual Tony Awards. Harris will next host and produce the 65th Primetime Emmy Awards. Greer made her Broadway debut in Theresa Rebeck's Dead Accounts. Her TV work includes "Arrested Development," "How I Met Your Mother," "Modern Family" and "The Big Bang Theory." Her film credits include "27 Dresses," "The Wedding Planner" and "Elizabethtown."

The D23 Expo — The Ultimate Disney Fan Event — brought the entire world of Disney under one roof, providing attendees with unprecedented access to Disney films, television and theme parks. It was held Aug. 9-11 in Anaheim, CA.