Question: Billy Crystal, who acted along side Meg Ryan in "When Harry Met Sally", was also the voice of who in Monsters, Inc?

Context articles: Bruno Kirby
Rob Reiner
Gretchen Palmer
Billy Crystal
Dumb and Dumberer: When Harry Met Lloyd
Nora Ephron
Monsters, Inc.
Meg Ryan
When Harry Met Sally... (soundtrack)
When Harry Met Sally...

Bruno Kirby (born Giovanni Quidaciolu, Jr.; April 28, 1949 – August 14, 2006) was an American actor, singer, voice artist, chef, and comedian.
 He was known for his roles in "City Slickers", "When Harry Met Sally...", "Good Morning, Vietnam", "The Godfather Part II", and "Donnie Brasco".
 He voiced Reginald Stout in "Stuart Little".
Robert Reiner (born March 6, 1947) is an American actor, writer, director, producer, and activist.
 As an actor, Reiner first came to national prominence with the role of Michael Stivic on "All in the Family" (1971–79).
 That role earned him two Emmy Awards during the 1970s.
 As a director, Reiner was recognized by the Directors Guild of America (DGA) with nominations for the coming of age comedy-drama film "Stand by Me" (1986), the romantic comedy "When Harry Met Sally..." (1989), and the military courtroom drama "A Few Good Men" (1992).
 He also directed the psychological horror-thriller "Misery" (1990), the romantic comedy fantasy adventure "The Princess Bride" (1987) and the heavy metal mockumentary "This Is Spinal Tap" (1984).
Gretchen Palmer (born December 16, 1961) is an American television and film actress.
 She has had recurring roles in television series such as "The Joe Schmo Show" and "The Parkers", and has appeared in films including "Fast Forward", "Crossroads", "The Malibu Bikini Shop", "Red Heat", "When Harry Met Sally...", "Chopper Chicks in Zombietown", "Moonbase", "Trois" (2000) and "I Got the Hook Up" (1998).
 She also appeared on The Young and the Restless as Serena.
William Edward Crystal (born March 14, 1948) is an American actor, writer, producer, director, comedian and television host.
 He gained prominence in the 1970s for playing Jodie Dallas on the ABC sitcom "Soap" and became a Hollywood film star during the late 1980s and 1990s, appearing in the critical and box office successes "When Harry Met Sally..." (1989), "City Slickers" (1991), and "Analyze This" (1999) and providing the voice of Mike Wazowski in the "Monsters, Inc." franchise.
Dumb and Dumberer: When Harry Met Lloyd is a 2003 American comedy film.
 It is the second film in the "Dumb and Dumber" film series and a prequel to the 1994 film "Dumb and Dumber".
 The film was directed by Troy Miller and based on the characters created by the Farrelly brothers from the original film.
 The film was poorly received by critics; however, it was a modest domestic box office success considering its budget, taking in just under $40 million.
 The subtitle is inspired by the film "When Harry Met Sally...".
Nora Ephron ( ; May 19, 1941 – June 26, 2012) was an American writer and filmmaker.
 She is best known for her romantic comedy films and was nominated three times for the Academy Award for Best Writing: for "Silkwood" (1983), "When Harry Met Sally..." (1989), and "Sleepless in Seattle" (1993).
 She won a BAFTA Award for Best Original Screenplay for "When Harry Met Sally...".
 She sometimes wrote with her sister Delia Ephron.
 Her last film was "Julie & Julia."
 She also co-authored the Drama Desk Award–winning theatrical production "Love, Loss, and What I Wore".
 In 2013, Ephron received a posthumous Tony Award nomination for Best Play for "Lucky Guy".
Monsters, Inc. is a 2001 American computer-animated comedy film produced by Pixar Animation Studios and distributed by Walt Disney Pictures.
 Featuring the voices of John Goodman, Billy Crystal, Steve Buscemi, James Coburn, and Jennifer Tilly, the film was directed by Pete Docter in his directorial debut, and executive produced by John Lasseter and Andrew Stanton.
 The film centers on two monsters employed at the titular energy-producing factory Monsters, Inc. — top scarer James P. "Sulley" Sullivan and his one-eyed partner and best friend Mike Wazowski.
 In the film, employees at Monsters, Inc. generate their city's power by scaring children, but they themselves are afraid that the children are toxic to them, and when one child enters the factory, Sulley and Mike must return her home before it is too late.
Meg Ryan (born Margaret Mary Emily Anne Hyra; November 19, 1961) is an American actress, director, and producer.
 Ryan began her acting career in 1981 in minor roles, before joining the cast of the CBS soap opera "As the World Turns" in 1982.
 Subsequently, she began to appear in supporting roles in films during the mid-1980s, achieving recognition in independent movies such as "Promised Land" (1988) before her performance in the Rob Reiner-directed romantic comedy "When Harry Met Sally..." (1989) brought her widespread attention and her first Golden Globe nomination.
When Harry Met Sally... is the soundtrack to the movie "When Harry Met Sally..." starring Billy Crystal and Meg Ryan.
 The songs are performed by pianist Harry Connick Jr., who won the Grammy Award for Best Jazz Male Vocal Performance.
When Harry Met Sally… is a 1989 American romantic comedy film written by Nora Ephron and directed by Rob Reiner.
 It stars Billy Crystal as Harry and Meg Ryan as Sally.
 The story follows the title characters from the time they meet just before sharing a cross-country drive, through twelve years or so of chance encounters in New York City.
 The film raises the question "Can men and women ever just be friends?"
 and advances many ideas about relationships that became household concepts, such as "high-maintenance" and the "transitional person".