Question: Which American director worked with animation for Disney, John Musker or Irwin Winkler?
Context: The Great Mouse Detective is a 1986 American animated mystery comedy film produced by Walt Disney Feature Animation and released by Walt Disney Pictures.  The 26th Disney animated feature film, the film was directed by Burny Mattinson, David Michener, and the team of John Musker and Ron Clements, who later directed Disney's hit films "The Little Mermaid" and "Aladdin".  The film was also known as The Adventures of the Great Mouse Detective for its 1992 theatrical re-release and Basil the Great Mouse Detective in some countries.  The main characters are all mice and rats living in Victorian London. Margo Winkler (born c. 1935) is an American actress, who often played minor roles as receptionists, clerks or judges.  She is known for her minor roles in several of Martin Scorsese's films which her husband Irwin Winkler produced.  She is best known for her roles in "Goodfellas" (1990) as Belle Kessler and as the receptionist in "The King of Comedy" (1983) whom Robert De Niro's character approaches on numerous occasions.  She is also known for her role as Barbara in "Life as a House" (2001).  She made her screen debut in 1970 in Stuart Hagmann's "The Strawberry Statement".  In 1999 she appeared in her son Charles Winkler's picture "Rocky Marciano", and her last appearance was in 2006 in her husband Irwin Winkler's "Home of the Brave" as a waiting room mother. The Princess and the Frog is a 2009 American animated musical film produced by Walt Disney Animation Studios and released by Walt Disney Pictures.  The 49th Disney animated feature film, the film is loosely based on the novel "The Frog Princess" by E. D. Baker, which is in turn based on the Brothers Grimm fairy tale "The Frog Prince".  Written and directed by Ron Clements and John Musker, the film features an ensemble voice cast that stars Anika Noni Rose, Bruno Campos, Keith David, Michael-Leon Wooley, Jennifer Cody, and Jim Cummings, with Peter Bartlett, Jenifer Lewis, Oprah Winfrey, Terrence Howard, and John Goodman.  Set in 1920s New Orleans, the film tells the story of a hardworking waitress named Tiana who dreams of owning her own restaurant.  After kissing a prince who has been turned into a frog by an evil voodoo sorcerer, Tiana becomes a frog herself and must find a way to turn back into a human before it is too late. Hercules is a 1997 American animated musical fantasy comedy film produced by Walt Disney Feature Animation for Walt Disney Pictures.  The 35th Disney animated feature film, the film was directed by Ron Clements and John Musker.  The film is loosely based on the legendary hero Heracles (known in the film by his Roman name, Hercules), the son of Zeus, in Greek mythology.  The film also featured the first positive portrayal of African American women in a Disney animated film. Irwin Winkler (born May 25, 1931) is an American film producer and director.  He is the producer or director of 50 motion pictures, dating back to 1967's "Double Trouble", starring Elvis Presley.  The fourth film he produced, "They Shoot Horses, Don't They? " (1969), starring Jane Fonda, was nominated for nine Academy Awards.  He won an Oscar for Best Picture for 1976's "Rocky".  As a producer, he has been nominated for Best Picture for three other films: "Raging Bull", "The Right Stuff", and "Goodfellas". The Mechanic is a 1972 American action thriller film directed by Michael Winner, produced by Irwin Winkler and Robert Chartoff, and written by Lewis John Carlino.  The film follows Arthur Bishop (Charles Bronson), a top assassin who works for a secret organisation and takes under him Steve McKenna, the ruthless and ambitious son of the organisation's head Harry McKenna, also known as "The Big" that Bishop killed.  Bishop then reveals that although that he is his protégé, he must face against McKenna who seeks revenge on his father's death. The Net 2.0 is a 2006 direct-to-video mystery thriller film written and produced by Rob Cowan and directed by Charles Winkler.  It is nominally a sequel to the 1995 film "The Net" directed by his father Irwin Winkler, but has a separate and unrelated plot.  The story concerns a computer systems analyst who finds herself in a web of identity theft, robbery, and murder when she lands in Turkey for a new job. John Musker (born November 8, 1953) is an American animation director.  Along with Ron Clements, he makes up the duo of one of the Disney animation studio's leading director teams. Aladdin is a 1992 American animated comedy musical romantic fantasy adventure film produced by Walt Disney Feature Animation for Walt Disney Pictures.  The film is the 31st Disney animated feature film, and was the fourth produced during the Disney film era known as the Disney Renaissance.  It was directed by John Musker and Ron Clements, and is based on the Arab-style folktale of the same name from "One Thousand and One Nights" and the French interpretation by Antoine Galland.  The voice cast features Scott Weinger, Robin Williams, Linda Larkin, Jonathan Freeman, Frank Welker, Gilbert Gottfried and Douglas Seale.  The film follows Aladdin, a street urchin, who finds a magic lamp containing a genie.  In order to hide the lamp from the Grand vizier, he disguises himself as a wealthy prince, and tries to impress the Sultan and his daughter. Charles Winkler is an American television and film director and producer.  He is the son of Academy Award-winning producer and director Irwin Winkler and actress Margo Winkler and the husband of Sandra Nelson.
Answer: John Musker