Matt Damon, Sam Neill, and Luke Hemsworth as actors portraying Loki, Odin, and Thor in Thor: Ragnarok
"They were the actors in the bad play being performed on Asgard."
Bill Murray as Ice Pick in Dumb and Dumber To
"Bill Murray as Jeff Daniels' drug-making roommate. Just amazing!"
Holly Robinson Peete, Peter DeLuise, and Johnny Depp reprising their roles from the original TV series in 21 Jump Street
"It's fun that they got the original cast members to be in the movie remake!"
Anna Faris as herself in Keanu
“I loved you in House Bunny.” LOL
Keith Richards as Jack Sparrow's father in Pirates of the Caribbean: At World's End
"Keith Richards was Johnny Depp's literal inspiration for his character, Jack Sparrow!"
Oscar Isaac as Miguel O'Hara/Spider-Man 2099 in Spider-Man: Into the Spider-Verse
"Oscar's post-credits cameo as Spider-Man 2099 suggests the character may be part of a Spider-Man: Into the Spider-Verse sequel or spinoff."
Peter Jackson as Albert Dreary in The Lord of the Rings: The Fellowship of the Ring
"Peter Jackson aggressively biting a carrot."
Stephen Colbert in the extended edition of The Hobbit: The Desolation of Smaug
"This was super cute considering how he's publicly loved LOTR for so long."
Adam Lambert in Bohemian Rhapsody
"Lambert's appearance is apropos considering he is Queen's current lead singer. Original member Brian May also makes an appearance, obscured by a newspaper."
Selena Gomez as herself in The Big Short
Stan Lee in Ralph Breaks the Internet
"He passed away just a week before the film's release, so seeing him as a user avatar made me want to smile and shed a tear at the same time."
Dan Aykroyd as Ray Stantz in Casper
"I love the Ghostbusters cameo in Casper!"
Aykroyd comes charging out of the haunted home and says, "Who you gonna call? Someone else."
Thomas Brodie-Sangster as a First Order Petty Officer in Star Wars: The Force Awakens
Billy Dee Williams and Carrie Fisher in Fanboys
"This movie was about a group of Star Wars fans who wanted to get a personal viewing of Episode I before its official release date because one of them was diagnosed with a terminal cancer and would likely die before opening day. It was a hilarious movie, and a few of the saga's original stars made cameo appearances. Billy Dee Williams was a judge, Carrie Fisher was a doctor, and Ray Park was a security guard."
Kurt Vonnegut as himself in Back to School
Burt Bacharach as himself in all three Austin Powers films
"Ha — ladies and gentlemen, Mr. Burt Bacharach."
Brandon Crane as a board member of Hanscom Architecture in It Chapter Two
"Brandon Crane played the young Ben in the 1990 It TV miniseries."
Will Ferrell as Chazz Reinhold in Wedding Crashers
Daniel Craig as a stormtrooper in Star Wars: The Force Awakens
"He was the stormtrooper Rey uses the force on. He was there because James Bond was filming next door.
Mindy Kaling as herself in This Is the End
"Mindy cracked a couple gut busters in her brief appearance."
James McAvoy as Professor X, Nicholas Hoult as Beast, Evan Peters as Quicksilver, Tye Sheridan as Cyclops, Alexandra Shipp as Storm, and Kodi Smit-McPhee as Nightcrawler in Deadpool 2
"I loved all of the X-Men hiding in the mansion!"
Keanu Reeves in Always Be My Maybe
Taylor Swift as herself in Hannah Montana: The Movie
Meryl Streep as herself playing Bonnie in a musical version of Bonnie and Clyde in Stuck on You
"She literally just dances the whole time, but it’s so much fun!"
Chuck Norris as a dodgeball judge in Dodgeball: A True Underdog Story
Glenn Close as a pirate in Hook
"Glenn Close as the (male and bearded) pirate!"
Richard Branson as an air traveller in Casino Royale
"Richard Branson being checked by security in Miami's airport during Casino Royale."
Huey Lewis as a Battle of the Bands judge in Back to the Future
R.L. Stine as Mr. Black in Goosebumps
"R.L. Stine (whose books the film is based on) has a cameo as a teacher referred to as 'Mr. Black,' because Jack Black plays R.L. Stine in that movie."