Question: Which actor played banker Andy Dufresne in the 1994 drama film The Shawshank Redemption?

Context paragraphs:
Rita Hayworth and Shawshank Redemption: Rita Hayworth and Shawshank Redemption is a novella by Stephen King, from his 1982 collection "Different Seasons", subtitled "Hope Springs Eternal".  It is loosely based on the Leo Tolstoy short story "God Sees the Truth, But Waits".  It was adapted for the screen in 1994 as "The Shawshank Redemption", which was nominated for seven Academy Awards in 1994, including Best Picture.  In 2009, it was adapted for the stage as the play "The Shawshank Redemption".

William Sadler (actor): William Thomas Sadler (born April 13, 1950) is an American film and television actor.  His television and motion picture roles have included Lewis Burwell "Chesty" Puller in "The Pacific", in "", Sheriff Jim Valenti in "Roswell", convict Heywood in "The Shawshank Redemption", Senator Vernon Trent in "Hard To Kill", and the Grim Reaper in "Bill & Ted's Bogus Journey", a role for which he won the Saturn Award for Best Supporting Actor, and his role as Colonel Stuart opposite Bruce Willis in "Die Hard 2".  He played the character of President of the United States, Matthew Ellis, in "Iron Man 3", in "Marvel's Agents of S.H.I.E.L.D.", and in "WHIH Newsfront", and recurs as Steve McGarrett's murdered father in the latter-day 2000's remake of "Hawaii Five-O".  In 2015, Sadler had an appearance in the TV series "Z Nation".

The Shawshank Redemption (soundtrack): The Shawshank Redemption is the original soundtrack of the 1994 film "The Shawshank Redemption" starring Morgan Freeman, Tim Robbins, Bob Gunton, William Sadler, Clancy Brown, and others.

Stephen King: Stephen Edwin King (born September 21, 1947) is an American author of horror, supernatural fiction, suspense, science fiction, and fantasy.  His books have sold more than 350 million copies, many of which have been adapted into feature films, miniseries, television series, and comic books.  King has published 54 novels, including seven under the pen name Richard Bachman, and six non-fiction books.  He has written nearly 200 short stories, most of which have been collected in book collections.  Many of his stories are set in his home state of Maine.  His novella "Rita Hayworth and Shawshank Redemption" was the basis for the film "The Shawshank Redemption" which is widely regarded as one of the greatest films of all time.

Bob Gunton: Robert Patrick Gunton Jr. (born November 15, 1945) is an American actor.  He is known for playing strict, authoritarian characters, with his best known roles as Warden Samuel Norton in the 1994 prison film "The Shawshank Redemption", Chief George Earle in 1993's "Demolition Man", Dr. Walcott, the domineering dean of Virginia Medical School in "Patch Adams", and President Juan Peron in the original Broadway production of "Evita", for which he received a Tony Award nomination.  He also appears in the "Daredevil" TV series as Leland Owlsley.

Morgan Freeman: Morgan Freeman (born June 1, 1937) is an American actor, producer and narrator.  Freeman won an Academy Award in 2005 for Best Supporting Actor with "Million Dollar Baby" (2004), and he has received Oscar nominations for his performances in "Street Smart" (1987), "Driving Miss Daisy" (1989), "The Shawshank Redemption" (1994) and "Invictus" (2009).  He has also won a Golden Globe Award and a Screen Actors Guild Award.

Tim Robbins: Timothy Francis Robbins (born October 16, 1958) is an American actor, screenwriter, director, producer, activist and musician.  He is well known for his portrayal of Andy Dufresne in the prison drama film "The Shawshank Redemption" (1994).

Shawshank tree: The iconic tree featured in the 1994 motion picture "The Shawshank Redemption" was a white oak located near Malabar Farm State Park in Lucas, Ohio, United States.  The tree was at least 100 ft tall and approximately 180 to 200 years old.  The tree played a central role in the film's plot and was one of the most popular tourist sites connected to it.  The tree was split by lightning on July 29, 2011, and eventually was knocked down by strong winds on or around July 22, 2016.

Ohio State Reformatory: The Ohio State Reformatory (OSR), also known as the Mansfield Reformatory, is a historic prison located in Mansfield, Ohio in the United States.  It was built between 1886 and 1910 and remained in operation until 1990, when a United States Federal Court ruling (the 'Boyd Consent Decree') ordered the facility to be closed.  While this facility was used in a number of films (including several while the facility was still in operation), TV shows and music videos, it was made famous by the film "The Shawshank Redemption" (1994) when it was used for the majority of the movie.

The Shawshank Redemption: The Shawshank Redemption is a 1994 American drama film written and directed by Frank Darabont, and based on the Stephen King novella "Rita Hayworth and Shawshank Redemption".  The film tells the story of banker Andy Dufresne (Tim Robbins), who is sentenced to life in Shawshank State Penitentiary for the murder of his wife and her lover, despite his claims of innocence.  Over the following two decades, he befriends contraband smuggler Ellis "Red" Redding (Morgan Freeman), and becomes instrumental in a money laundering operation led by warden Samuel Norton (Bob Gunton).  The film also stars William Sadler, Clancy Brown, Gil Bellows, and James Whitmore.

Supporting paragraphs: The Shawshank Redemption Tim Robbins
Answer: Timothy Francis Robbins