Also Jenny Lewis (Rilo Kiley).
I was amazed when I checked the credits at Imdb on Taxi Driver and found out that the pedophile whom Bickle waxes was Harvey Keitel! He’s 70 years old now, and I am mostly familiar with him from more latter-day roles, when he has a paunch, his voice is gravelly, he has lost a goodly portion of his hair, etc.
That’s not exactly it : he agreed to play Mace Windu on the condition that he “didn’t die like some punk”. I suppose Jackson didn’t want to reenact Deep Blue Sea 
He also had to have the only purple light saber, so he would stand out in the big fight scene on Geonosis!
And Elijah Wood is in Back to the Future II, as one of the kids trying the arcade game at Cafe 80’s.
Elijah Wood in Back to the Future II
He’s so cute!!!
Just put Elrond in drag and end all of his lines with a drawn out “Mr. Anderson.”, makes for a much fun diversion.
There’s no strength left in the world of men, Misssster Aragorn…
Still possibly the most unintentionally funny scene in any “serious” movie. That was the most limber shark in the history of the world!
Take another look at Dead Man Walking.
Notice Jack Black?
Bill Murray in “Tootsie”, because he’s uncredited.
“The Raven” was a great schlock movie by Roger Cormen. It featured Vincent Price, Boris Karloff, and Peter Lorre … and who’s that kid in the Robinhood cap? It’s Jack Nicholson!!! (Look about the 3:30 mark.)
The Hot Rock, with Robert Redford. Who plays the part of Policeman? Why, it’s Christopher Guest!
In Woody Allen’s Bananas, there is a young tough on the subway. The young tough in The Prisoner of 2nd Avenue looks remarkably the same. He should, as in both cases he is Sylvester Stallone. In the latter movie, there’s a throwaway role for a cab driver. “Where to, buddy?” is his only line. Nine years later that same actor would get the Oscar for best actor. It was F. Murray Abraham.
Jeff had one line in *Annie Hall *about forgetting his mantra.
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Do young punks often get eaten by superintelligent sharks?
They do when they’re too busy monologuing to pay attention to the damn water!
Damon Wayans is one of the firemen in “Roxanne” with Steve MArtin and Darryl Hannah.
In the first Terminator movie, a naked Arnold steals the clothes of a young punk played by Bill Paxton.
The real tragedy is that he never got to the part about too many motherfucking sharks in the motherfucking pools. 
I just had the whoa right there. I saw that movie a million times but not for a while. He has changed a lot.
I mentioned that in a recent thread. He wasn’t a bad character actor in things like Hill Street Blues and King of New York. But then his ego got in the way.
Sometime after Cheers came on I noticed John Ratzenberger in A Bridge Too Far. He was one of the officers in Robert Redford’s unit.
I was only 8 when it came out so when I finally got around to seeing One Flew Over the Cuckoos Nest I was surprised to see Danny Devito and Christopher Lloyd as two of the patients. Brad Dourif was too but he didn’t get semi well known until a bit later.
Ratzenburger was also driving a jeep in Gandhi
Thomas Haden Church played Billy Clanton in Tombstone.