An overview of Disney-related events that occured in 1978.
- March 10 - Return from Witch Mountain
- June 9
- July 5 - Hot Lead and Cold Feet
- November - Mickey's Birthday Party Show
- December 16 - Pinocchio (re-release)
- July 5 - The Madcap Adventures of Mr. Toad
- December 16 - The Small One
- November 23 - The Mickey Mouse balloon makes his 8th appearence in the Macy's Thanksgiving Day Parade
- March 10 - Letha Wedge, Dr. Victor Gannon
- June 9 - Zunar-J-5/9 Doric-4-7, Sergeant Duffy, Frank Wilson, Liz Bartlett, General Stilton, Mr. Stallwood, Norman Link, Earnest Ernie, Doctor Heffel, Captain Anderson, Colonel Woodruff, Charlie Olympus, Weasel, Honest Harry, Judge Alvin Horsham, Sarasota Slim, Omar and Mr. Smith, Charlie Cooney, Edna Cooney
- December 16 - Small One, The Boy, The Father, The Three Merchants, The Potter, The Baker, Auctioneer, The Tanner, The Three Donkeys, Joseph, Virgin Mary
- June - Matterhorn Bobsleds at Disneyland reopens after improvements have been made to the interior, adding the Yeti (three of them), an ice cavern with glowing crystals and snow storms.
- July 14 - The American Egg House restaurant opens on Main Street, U.S.A. at Disneyland.
- September 1 - The Stage Door Café restaurant opens in Frontierland at Disneyland.
Home video releases
- December - On Vacation with Mickey Mouse and Friends.
- MCA released several Disney laserdiscs.
- January 2 - Megumi Toyoguchi (Japanese voice actress)
- January 14 - Sage Brocklebank (actor)
- January 24 - Kristen Schaal (actress, voice actress-comedian, and writer)
- January 26 - Kelly Stables (actress and voice actress)
- February 2 - Eden Espinosa (actress and singer)
- February 7 - Ashton Kutcher (actor, comedian, producer, investor, and former fashion model)
- February 20
- February 21 - Kumail Nanjiani (comedian, actor, screenwriter, and podcaster)
- February 28 - Geoffrey Arend (actor)
- March 4 - Geno Segers (actor)
- March 17 - Patrick Seitz (voice actor, ADR director, and script writer)
- April 15 - Chris Stapleton (singer-songwriter, guitarist, and record producer)
- April 19 - James Franco (actor)
- April 28 - Robert Oliveri (actor)
- April 29 - Tyler Labine (actor and voice actor)
- May 10
- May 12 - Jason Biggs (actor and comedian)
- May 15 - David Krumholtz (actor, voice actor, comedian, and producer)
- May 22 - Ginnifer Goodwin (actress and voice actress)
- June 2
- June 7 - Bill Hader (actor, voice actor, comedian, writer, producer, and director)
- June 8 - Maria Menounos (actress, journalist, television presenter, and occasional professional wrestler)
- June 11 - Joshua Jackson (actor)
- June 12
- June 16 - Daniel Brühl (actor)
- June 18 - Tara Platt (actress, voice actress, and author)
- June 19 - Zoe Saldana (actress and dancer)
- June 29 - Nicole Scherzinger (singer and actress)
- July 1 - Hillary Tuck (actress)
- July 4 - Becki Newton (actress and voice actress)
- July 6 - Tia Mowry and Tamera Mowry (twin actresses)
- July 12 - Topher Grace (actor)
- July 19
- July 23 - Travis Oates (actor, voice actor, director, and writer)
- August 4 - Satoshi Hino (voice actor)
- August 7 - Alex Timbers (writer and director)
- August 18 - Andy Samberg (actor, voice actor, comedian, writer, rapper, and producer)
- August 22 - James Corden (actor, comedian, writer, producer, and presenter)
- August 23 - Andrew Rannells (actor, voice actor, comedian, and singer)
- August 25 - Kel Mitchell (actor, voice actor, and comedian)
- September 4 - Wes Bentley (actor)
- September 18 - Billy Eichner (comedian, actor, voice actor, writer, and television personality)
- September 23 - Anthony Mackie (actor)
- October 4 - Dana Davis (actress and voice actress)
- October 7
- October 14 - Usher Raymond (singer, songwriter, dancer, businessman, philanthropist, and actor)
- October 20 - Dionne Quan (voice actress)
- October 26 - Wynn Everett (actress)
- November 17 - Rachel McAdams (actress)
- November 23 - Destin Daniel Cretton (film director and screenwriter)
- November 24 - Katherine Heigl (actress and producer)
- November 28 - Aimee Garcia (actress)
- November 30
- December 7 - Kristofer Hivju (actor)
- December 28 - John Legend (musician and actor)
- December 29 - Ali Hillis (actress and voice actress)
- January 18 - Junius Matthews (actor and voice actor)
- April 21 - Thelma Boardman (voice actress and writer)
- May 28 - Basil Davidovich (animator and layout artist)
- July 26 - Mary Blair (visual development artist)
- August 24 - Louis Prima (singer, actor, songwriter, bandleader, and trumpeter)
- September 30 - Edgar Bergen (actor, comedian, radio performer, and ventriloquist)
- October 8 - Karl Swenson (actor and voice actor)
- Chris Buck - Director/Animator who worked on The Little Mermaid, Tarzan, and Frozen.
- Phil Nibbelink - Animator on The Fox and the Hound, The Black Cauldron, The Great Mouse Detective, and Who Framed Roger Rabbit.
- Darrell Van Citters - Animator who worked on The Fox and the Hound and directed the shorts Fun with Mr. Future and Sport Goofy in Soccermania.
- Michael Peraza Jr. - Art Director/Layout Artist on The Fox and the Hound, The Little Mermaid, Beauty and the Beast, and Aladdin.
- Glenn Vilppu - Layout Artist on The Fox and the Hound and The Black Cauldron.
- Ben Burgess - Assistant Animator who worked on The Fox and the Hound, Mickey's Christmas Carol, and The Black Cauldron.
- Ray Harris - Assistant Animator on Beauty and the Beast, Aladdin, and The Lion King.