| He plays the Priceline Negotiator | 33 |
| He plays Sam on "Private Practice" | 44 |
| He plays Sam in "Transformers" | 40 |
| He plays Matt Houston's uncle | 33 |
| He plays Lord Voldemort in Harry Potter films | 45 |
| He plays Jack on "30 Rock" | 36 |
| He plays Jack Donaghy on "30 Rock" | 44 |
| He plays Fin on "Law & Order: SVU" | 48 |
| He plays Dr. Jack Shephard on "Lost" | 46 |
| He plays Dr. Foreman on "House" | 41 |
| He plays Dr. Eric Foreman on "House" | 46 |
| He plays Dr. Carter on "ER" | 37 |
| He plays Andy Bernard on "The Office" | 47 |
| He played Yuri to Julie's Lara | 34 |
| He played Yuri in "Doctor Zhivago" | 44 |
| He played Yogurt in "Spaceballs" | 42 |
| He played Yemana on "Barney Miller" | 45 |
| He played Winchester on "MASH" | 40 |
| He played Wesley on "Star Trek: T.N.G." | 49 |
| He played Wesley Crusher on "ST: TNG" | 47 |
| He played Vito in "The Godfather" | 43 |
| He played Van Doren in "Quiz Show" | 44 |
| He played Uncle Bill on "Family Affair" | 49 |
| He played Ugarte in "Casablanca" | 42 |
| He played Ugarte in "Casablanca'' | 46 |
| He played Tony on "NYPD Blue" | 39 |
| He played Tommy in "Tommy" | 36 |
| He played the Thing in "The Thing" | 44 |
| He played the same character for 20 years | 41 |
| He played the mark in "The Sting" | 43 |
| He played the lyre, not the fiddle | 34 |
| He played the Hulk on 1970s-'80s TV | 39 |
| He played The Chief in "Dirty Harry" | 46 |
| He played Tessio in "The Godfather" | 45 |
| He played Sulu on "Star Trek" | 39 |
| He played Sparrow and Scissorhands | 34 |
| He played Sonny in "The Godfather" | 44 |
| He played Sinatra in "The Rat Pack" | 45 |
| He played Sigler's brother on TV | 36 |
| He played Sheldon in "Misery" | 39 |
| He played Santa in "Elf" | 34 |
| He played Sam on "Cheers" | 35 |
| He played Rowdy in TV's "Rawhide" | 47 |
| He played Roger in "Airplane!" | 40 |
| He played Rob in ''Rob Roy'' | 44 |
| He played Quint in "Jaws" | 35 |
| He played Ponch on "CHiPs" | 36 |
| He played Ponch on ''CHiPs'' | 44 |
| He played Pinky in "Duck Soup" | 40 |
| He played Pierce on "MASH" | 36 |
| He played Pickering in "My Fair Lady" | 47 |
| He played Paul Drake on 'Perry Mason' | 45 |
| He played opposite Burton in "Becket" | 47 |
| He played one of TV's Sopranos | 34 |
| He played officer Poncherello on TV | 35 |
| He played Nixon in "Nixon" | 36 |
| He played Nick to Barbra's Fanny | 36 |
| He played Nero in 'Quo Vadis' | 37 |
| He played Neo in "The Matrix" | 39 |
| He played Mr. Magoo in "Mr. Magoo" | 44 |
| He played Mowgli in "Jungle Book" | 43 |
| He played Mowgli in 'Jungle Book' | 41 |
| He played Mingo on "Daniel Boone" | 43 |
| He played Maximus Decimus Meridius | 34 |
| He played Max on "MASH" | 33 |
| He played Mary Richards's boss | 34 |
| He played Marty in "Marty" | 36 |
| He played Marsellus in "Pulp Fiction" | 47 |
| He played Mandela on TV's "Mandela" | 49 |
| He played Lt. Gerard on "The Fugitive" | 48 |
| He played Lord Jim in "Lord Jim" | 42 |
| He played Locke on "Lost" | 35 |
| He played Little Ricky's dad | 32 |
| He played Leo in "Twin Peaks" | 39 |
| He played Lennie in "Of Mice and Men" | 47 |
| He played Laszlo in "Casablanca" | 42 |
| He played Kookie in "77 Sunset Strip" | 47 |
| He played Judge Hoyle in "The Verdict" | 48 |
| He played Joseph on "Caprica" | 39 |
| He played Joseph in "Caprica" | 39 |
| He played Johnny in "Johnny Mnemonic" | 47 |
| He played John on "ER" | 32 |
| He played John in “Roots” | 33 |
| He played Jin-Soo Kwon on "Lost" | 42 |
| He played Jim in "The Doors" | 38 |
| He played James, also known as 007 | 34 |
| He played James in "Dr. No" | 37 |
| He played Jack in the all-time top grossing film | 48 |
| He played Jack in "Titanic" | 37 |
| He played Jack Gallo on "Just Shoot Me" | 49 |
| He played J-Bone in "Johnny Mnemonic" | 47 |
| He played Indiana Jones's father | 36 |
| He played in "Waiting for Godot" | 42 |
| He played in "The Misfits": 1961 | 42 |
| He played in "Love Story" | 35 |
| He played in "Jezebel": 1938 | 38 |
| He played in "Back Street" | 36 |
| He played in "A Thousand Clowns": 1965 | 48 |
| He played himself in "Superman" | 41 |
| He played himself in 'Space Jam' | 40 |