Jared Leto (born December 26, 1971) is an American actor, singer, songwriter, and director. After starting his career with television appearances in the early 1990s, Leto achieved recognition for his role as Jordan Catalano on the television series My So-Called Life (1994). He made his film debut in How to Make an American Quilt (1995) and received first notable critical praise for his performance in Prefontaine (1997).Leto's performance as a transgender woman in Dallas Buyers Club (2013) earned him the Academy Award for Best Supporting Actor, among numerous other accolades. Leto is considered to be a method actor, known for his constant devotion to and research of his roles. He often remains completely in character for the duration of the shooting schedules of his films, even to the point of adversely affecting his health.He is also known to be selective about his film roles.

Leto is the lead vocalist, multi-instrumentalist and main songwriter for Thirty Seconds to Mars, a band he formed in 1998 in Los Angeles, California, with his older brother Shannon Leto. Their debut album, 30 Seconds to Mars (2002), was released to positive reviews but only to limited success.The band achieved worldwide fame with the release of their second album A Beautiful Lie (2005). Their following releases, This Is War (2009) and Love, Lust, Faith and Dreams (2013), received further critical and commercial success.As of September 2014, the band has sold over 15 million albums worldwide.Leto has also directed music videos, including the MTV Video Music Award–winning "The Kill" (2006), "Kings and Queens" (2009), and "Up in the Air" (2013).Jared Leto won the Oscar for best supporting actor for his performance in Dallas Buyers Club in 2014.