<P> Ledger received "Best Actor of 2005" awards from both the New York Film Critics Circle and the San Francisco Film Critics Circle for his performance in Brokeback Mountain, in which he plays Wyoming ranch hand Ennis Del Mar, who has a love affair with aspiring rodeo rider Jack Twist, played by Jake Gyllenhaal . He also received a nomination for Golden Globe Best Actor in a Drama and a nomination for Academy Award for Best Actor for this performance, making him, at age 26, the ninth - youngest nominee for a Best Actor Oscar . In The New York Times review of the film, critic Stephen Holden writes: "Both Mr. Ledger and Mr. Gyllenhaal make this anguished love story physically palpable . Mr. Ledger magically and mysteriously disappears beneath the skin of his lean, sinewy character . It is a great screen performance, as good as the best of Marlon Brando and Sean Penn ." In a review in Rolling Stone, Peter Travers states: "Ledger's magnificent performance is an acting miracle . He seems to tear it from his insides . Ledger doesn't just know how Ennis moves, speaks and listens; he knows how he breathes . To see him inhale the scent of a shirt hanging in Jack's closet is to take measure of the pain of love lost ." </P> <P> After Brokeback Mountain, Ledger costarred with fellow Australian Abbie Cornish in the 2006 Australian film Candy, an adaptation of the 1998 novel Candy: A Novel of Love and Addiction, as young heroin addicts in love attempting to break free of their addiction, whose mentor is played by Geoffrey Rush; for his performance as sometime poet Dan, Ledger was nominated for three "Best Actor" awards, including one of the Film Critics Circle of Australia Awards, which both Cornish and Rush won in their categories . Shortly after the release of Candy, Ledger was invited to join the Academy of Motion Picture Arts and Sciences . As one of six actors embodying different aspects of the life of Bob Dylan in the 2007 film I'm Not There, directed by Todd Haynes, Ledger "won praise for his portrayal of' Robbie (Clark),' a moody, counter-culture actor who represents the romanticist side of Dylan, but says accolades are never his motivation". Posthumously, on 23 February 2008, he shared the 2007 Independent Spirit Robert Altman Award with the rest of the film's ensemble cast, its director, and its casting director . </P> <P> In his penultimate film performance, Ledger played the Joker in Christopher Nolan's 2008 film The Dark Knight, released nearly six months after his death . While working on the film in London, Ledger told Sarah Lyall in their New York Times interview that he viewed The Dark Knight's Joker as a "psychopathic, mass murdering, schizophrenic clown with zero empathy". For his work on The Dark Knight, Ledger won the Academy Award for Best Supporting Actor with his family accepting it on his behalf, as well as numerous other posthumous awards, including the Golden Globe Award for Best Supporting Actor, which Christopher Nolan accepted for him . At the time of his death on 22 January 2008, Ledger had completed about half of the work for his final film performance as Tony in Terry Gilliam's The Imaginarium of Doctor Parnassus . Gilliam chose to adapt the film after his death by having fellow actors Johnny Depp, Jude Law, and Colin Farrell play "fantasy transformations" of his character so that Ledger's final performance could be seen in theatres . </P> <P> Ledger had aspirations to become a film director and had made some music videos, which director Todd Haynes praised highly in his tribute to Ledger upon accepting the ISP Robert Altman Award, which Ledger posthumously shared, on 23 February 2008 . In 2006, Ledger directed music videos for the title track on Australian hip hop artist N'fa's CD debut solo album Cause An Effect and for the single "Seduction Is Evil (She's Hot)". Later that year, Ledger inaugurated a new record label, Masses Music, with singer Ben Harper and also directed a music video for Harper's song "Morning Yearning". </P>

Who is the guy that plays the joker
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