Peter Billingsley as Andrew in The Break Up

Sean Penn in Carlito's Way

Bruce Boxleitner in Gods and Generals. Even knowing he was in it I could not pick him out.

Same her bud.

Ben Affleck in Dazed and Confused.

Vincent DiNofrio in The Salton Sea.

Not quite the same, but it took me forever to realize that Andreas Katsulas, who I knew as G'Kar from Babylon 5, was a pretty famous character actor whose face I recognized when I saw a picture of him without the make-up.

Same with Andrew Robinson who played Garak on Deep Space Nine. I had no idea I'd seen the actor before until I saw him without make-up. (From Hellraiser, Dirty Harry, and a bunch of other films.)

Tim Curry as "The Darkness" in Legend - I still don't believe it's him :)

Second many of these, Edward Norton in Kingdom of Heaven, Gary Oldman in Hannibal, Tim Curry in Legend and wanted to add...

Bruce Spence in MANY of his later bit roles... the Mouth of Sauron in LOTR:ROTK, the long-toothed blue alien in Star Wars Episode II, the Trainman in the second Matrix movie and one of the aliens in Dark City. Definitely my favorite "hidden actor" to find in a movie somewhere.

cilian murphy - breakfast on pluto
kelsey gramer (sp?) - x3

Re: Actor or actress you didn't recognize until the end credits.
 

Watched Nixon for the first time a few nights ago. Paul Sorvino (As Kissinger) sure fooled my @$$.

Re: Actor or actress you didn't recognize until the end credits.
 

Winona Ryder in Star Trek

Re: Actor or actress you didn't recognize until the end credits.
 

After seeing Rafe Spall in Shaun of the Dead

http://i46.tinypic.com/vn1m50.jpg


...I didn't know it was him in Hot Fuzz until the credits.

http://i47.tinypic.com/142r5ep.jpg

Re: Actor or actress you didn't recognize until the end credits.
 

Ghoulies was on TV today and I watched it for the first time in probably 20 years. Watching the credits I thought "I wonder if I'll recognize any names" and was surprised to see Mariska Hargitay.

Re: Actor or actress you didn't recognize until the end credits.
 

Yeah, he disappears big time into Kissinger.

Re: Actor or actress you didn't recognize until the end credits.
 

Even then, during the theatrical run the only clue it was him was a credit for his assistant.

Re: Actor or actress you didn't recognize until the end credits.
 

Tyler Perry in Star Trek

Didn't know he was even in this thing till DVDtalk mentioned it actually.

Re: Actor or actress you didn't recognize until the end credits.
 

Dan Aykroyd- Indiana Jones and the Temple of Doom, he's the greeter as Indy, Short Round and Willie Scott walk towards the plane near the start of the movie

Re: Actor or actress you didn't recognize until the end credits.
 

Lenny Kravitz in Precious; if I would have known he was in it before seeing it (like I knew with Mariah Carey), then I probably would have realized it was him.

Re: Actor or actress you didn't recognize until the end credits.
 

Dwight Yoakam in Slingblade

Re: Actor or actress you didn't recognize until the end credits.
 

Eric Bana as Nero in Star Trek. Actually didn't put that together until the 3rd viewing.

Re: Actor or actress you didn't recognize until the end credits.
 

Get the fuck outa here! That's crazy! I gotta watch that now. I can't believe I didn't notice that - one of my favorite movies I've watched over and over and over. I knew of Alfred Molina in Raiders, but Akroyd..wow!

Re: Actor or actress you didn't recognize until the end credits.
 

The guys in back of me during Sherlock Holmes thought that Lord Blackpool was being played by Andy Garcia until the end credits.

Re: Actor or actress you didn't recognize until the end credits.
 

Cate Blanchett in "Hot Fuzz".

Re: Actor or actress you didn't recognize until the end credits.
 

I think most people did.

My most recent "Holy crap!" moment was Clifton Collins Jr. in Star Trek. I loved him in Boondock Saints II as the crazy Mexican guy but seeing him as Ayer in Star Trek blew my mind. I didn't notice it until my 5th viewing.