Merle Streep...Sophie's Choice
Steve McQueen...The Sand Pebbles
Michael Caine & Robert Duvall...Secondhand Lions
Jeff Bridges...True Grit
Anthony Hopkins...The World's Fastest Indian
Robin Williams...most of his movies
Robert DiNero...Awakenings, Ronin
Al Pacino...Serpico, Heat, Devil's Advocate
Val Kilmer...Tombstone
Tom Hanks...Saving Private Ryan
Leonardo DiCaprio...The Departed...The Aviator
Bruce Willis & Bill.Murray...most of their movies...buddy appeal
Helen Mirren & Kate Winslet...sex appeal
Richard Burton...voice appeal
Clint Eastwood & Eli Wallach...TGB&tU
&....Gene Hackman, John Hurt, Gary Oldman, Jim Carrey, Morgan Freeman, Kate Blanchett,
Ray Liotta, Brad Pitt, Sean Connerey, Daniel Craig (I absolutely love the Bond Franchise), DiCaprio, Denzel, Vince Vaugn.
EDIT: I also have to add Javier Bardem, and I've only seen him in No Country For Old Men and Skyfall, but man he's amazing. Very captivating in both roles!
Morgan Freeman
Denzel Washington
Will Smith
Robin Williams
Tom Hanks
Matt Damon
Robert Di Niro
John Candy
Matthew McConaughey
Jared Leto
Kevin Costner
Ryan Reynolds