Question: Who is the character portrayed by Matthew McConaughey in Dallas Buyers Club?
About the article "Dallas Buyers Club", section "Abstract".

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 Matthew McConaughey — "Dallas Buyers Club"  
After a five years hiatus from filming, Leto returned to act in the drama "Dallas Buyers Club" (2013), directed by Jean-Marc Vallée and co-starring Matthew McConaughey.
Leto portrayed Rayon, a drug addicted trans woman with AIDS who befriends McConaughey's character Ron Woodroof.
In order to accurately portray his role, he lost 30 pounds, shaved his eyebrows and waxed his entire body.
He stated the portrayal was grounded in his meeting transgender people while researching the role.
During filming, Leto refused to break character.
"Dallas Buyers Club" received widespread critical acclaim and became a financial success, resulting in various accolades for Leto, who was awarded the Golden Globe Award for Best Supporting Actor – Motion Picture, Screen Actors Guild Award for Outstanding Performance by a Male Actor in a Supporting Role and a variety of film critics' circle awards for the role.
The film earned him his first Academy Award for Best Supporting Actor. 
Dallas Buyers Club is a 2013 American biographical drama film, directed by Jean-Marc Vallée and written by Craig Borten and Melisa Wallack.
Matthew McConaughey stars as the real-life AIDS patient Ron Woodroof, who smuggled unapproved pharmaceutical drugs into Texas when he found them effective at improving his symptoms, distributing them to fellow sufferers by establishing the "Dallas Buyers Club" while facing opposition from the Food and Drug Administration (FDA).
"Dallas Buyers Club" premiered at the 2013 Toronto International Film Festival and was released theatrically on November 1, 2013, entering wide release on November 22.
The film received acclaim from critics, and won numerous accolades – most recognizing the performances of McConaughey and Jared Leto, including the Academy Award for Best Actor and the Academy Award for Best Supporting Actor, making it the first film since "Mystic River" (2003) to win both awards.
It also won Best Makeup and Hairstyling at the 86th Academy Awards, and received a nomination for Best Picture.
it grossed over $32 million in box office revenue against a budget of $5 million.
Matthew McConaughey — Dallas Buyers Club Bruce Dern — "Nebraska" Chiwetel Ejiofor — "12 Years a Slave" Tom Hanks — "Captain Phillips" Robert Redford — "All Is Lost"  
Vallée's next film starred Matthew McConaughey, Jared Leto and Jennifer Garner, titled "Dallas Buyers Club".
The film is based on the true-life tale of Ron Woodroof, a Texas electrician diagnosed with AIDS and given 30 days to live, who began smuggling alternative medicine into the United States to help himself and other AIDS patients.
The film was released in 2013 to critical success, earning Matthew McConaughey the Golden Globe Award for Best Actor and Jared Leto a Golden Globe Award for Best Supporting Actor.
The film was nominated for six Academy Awards, including Best Picture and Best Original Screenplay, and conquered the awards for Best Actor for McConaughey, and Best Supporting Actor for Leto, repeating the Golden Globes.
Vallée was nominated under the pseudonym of John Mac McMurphy for the Academy Award for Best Film Editing alongside Martin Pensa.