That was weird.
If there was some deeper/more sophisiticated meaning I sure missed it.
“E.T. the Extra-Terrestrial,” has a Debra Winger cameo as a zombie nurse at Hallowe’en.
Plus, she’s (part of[?]) the voice of ET, which is not a cameo.
Tom Cruise in Young Guns (@1:45). His makeup’s so thick and his scene’s so brief nobody noticed him.
On another bat climb, Ted Cassidy in costume as Lurch of the Addams Family popped out of the window for a quick chat.
The “Sharknado” movies are chock full of unexpected cameos. My favorite was ZZ Top in a crowd scene at the end of “Sharknado 2”; they’re running around on a subway car as a sharknado is about to blow them all to oblivion. 
I finally saw “Sharknado 4” a couple days ago, and the most surprising one for me was Dr. Drew as a pastor, marrying a young couple on a plane right before they parachute out the door and into a sharknado on the Vegas strip.
I would like to buy you a drink. I needed something to cheer me up after Mariota broke his leg today.
She plays God (a male God) in Made in Heaven, starring her then husband Timothy Hutton.
Jon Bon Jovi also has a brief cameo in Young Guns II
Slater’s mom is a Hollywood casting agent who worked on that movie, which is how he got the part. Still seems weird though.
I loved ZZ Top’s cameo in Back to the Future III. I know they did work on the soundtrack but having them spin their guitars at the festival was pretty funny.
The cute little movie “Masters of Menace” (1990) has cameos by Dan Aykroyd, John Candy and George Wendt, with a small role for Jim Belushi, playing their mechanic whose death sets off the events of the movie.
It’s Sulu, not Kirk. The scene is on the Excelsior, not the Enterprise.
George Wendt had a cameo in House (The Movie), John Ratzenberger had a cameo in House 2.
I’d forgotten that; that’s definitely odder. I still love her.
If she does, she’s sure to lose. 
You mean like this?
If she’s lucky.
…if it counts, then Steve Coogan and Bill Nighy count as well. The steady escalation of comedy legends in that scene is absolute comedy gold, and one of my favourite movie scenes of all time.
Thomas Pynchon - legendary author/recluse - had two confirmed cameos on the Simpsons and one unconfirmed/rumored cameo in the film of his novel Inherent Vice, despite his refusal to be photographed since the 1950s.
Not a movie but Seth Macfarlane in the Star Trek Enterprise series was a big WTF?
I believe he did a couple of episodes if I remember correctly.
He was just a bit, no name character.
Also a brief cameo in Austin Powers as the security guard that goes to get Austin some “orange sherbert”…