De-Glamorized Stars

Here are 15 movie stars who have successfully de-glamorized themselves for a part, according to A.V. Club. Wether it was for critical acclaim or simply to push themselves a little bit further, they went there.
Charlize Theron, Monster (2003)
Joaquin Phoenix, I'm Still Here (2010)
Johnny Depp, Fear And Loathing In Las Vegas (1998)
Jack Nicholson, About Schmidt (2002)
Henry Fonda, Once Upon a Time In The West (1968)
Anna Faris, Smiley Face (2007)
Katharine Hepburn, Long Day's Journey Into Night (1962)
Mariah Carey, Precious (2009)
Christian Bale, The Machinist (2004) The Fighter (2010)
Cameron Diaz, Being John Malkovich (1999)
Catherine Deneuve, Dancer In The Dark (2000)
Brad Pitt, 12 Monkeys (1995)
Jean-Claude Van Damme, JCVD (2008)
Javier Bardem, No Country For Old Men (2007)
Sylvester Stallone, Cop Land (1997)