Question: The Producers is a 2005 American musical comedy film directed by Susan Stroman, the film stars an ensemble cast, including which American comedian, actor and singer, best known as a cast member of "Saturday Night Live" from 1985 to 1990?

Context paragraphs:
Celebrity Jeopardy! (Saturday Night Live): Celebrity Jeopardy! is a series of sketches that aired regularly on the television comedy/variety show "Saturday Night Live" between 1996 and 2002, the years when Will Ferrell was a cast member.  It parodies the same-named special event on the television quiz show "Jeopardy!" that features competition between notable individuals with all winnings going towards charitable organizations, and significant reductions to the game's level of difficulty.  Fifteen sketches aired between December 1996 and February 2015: two sketches per season from 1996 to 2002, when Ferrell was a regular on the show; and one each in 2005 and 2009, when Ferrell returned to the show as host.  The sketch was revived for the "Saturday Night Live 40th Anniversary Special" on February 15, 2015.

Mary Katherine Gallagher: Mary Katherine Gallagher is a fictional character invented and portrayed by "Saturday Night Live" cast member Molly Shannon from 1995 to 2001.  She was considered the first breakout character from the new 1995 cast, and a significant marker of the increased influence of women writers on the show in the 1990s.  Shannon portrayed the character in a 1999 film, "Superstar", and she also reprised the role when she hosted "Saturday Night Live" in 2007.

Saturday Night Live: Saturday Night Live (abbreviated as SNL) is an American late-night live television sketch comedy and variety show created by Lorne Michaels and developed by Dick Ebersol.  The show premiered on NBC on October 11, 1975, under the original title NBC's Saturday Night.  The show's comedy sketches, which parody contemporary culture and politics, are performed by a large and varying cast of repertory and newer cast members.  Each episode is hosted by a celebrity guest (who usually delivers an opening monologue and performs in sketches with the cast) and features performances by a musical guest.  An episode normally begins with a cold open sketch that ends with someone breaking character and proclaiming, "Live from New York, it's Saturday Night! ", properly beginning the show.

Jay Pharoah: Jared Antonio Farrow (born 14 October, 1987) better known by his stage name Jay Pharoah, is an American actor, stand-up comedian, impressionist, rapper, and voice actor.  He joined the cast of NBC's "Saturday Night Live" in 2010, for its thirty-sixth season.  In 2015, he was ranked the 55th greatest "Saturday Night Live" cast member by "Rolling Stone" magazine.

List of Saturday Night Live episodes: <section begin=head />"Saturday Night Live" ("SNL") is a late-night sketch comedy and variety show created by Lorne Michaels.  It premiered on NBC, a terrestrial television network, on October 11, 1975 under the title "NBC's Saturday Night".  The show often satirizes contemporary American popular culture and politics.  "Saturday Night Live" features a two-tiered cast: the repertory members, also known as the "Not Ready for Prime-Time Players," and newer cast members, known as "Featured Players."  Each week, the show features a host, often a well-known celebrity, who delivers an opening monologue and performs in sketches with the cast.  A musical guest is also invited to perform several sets (usually two, and occasionally more).  Every so often a host or musical guest will fill both roles, such as was the case with Britney Spears in 2000 and 2002, Jennifer Lopez in 2001 and 2010, Justin Timberlake in 2003, 2006 and 2013, Taylor Swift in 2009, Bruno Mars in 2012, Lady Gaga in 2013, Miley Cyrus in 2013 and 2015, Drake in 2014 and 2016, Blake Shelton in 2015, and Ariana Grande in 2016.  With the exception of Season 7 and several other rare cases, the show has begun with a cold open that ends with someone breaking character and proclaiming "Live from New York, it's Saturday Night! "

Ellen Cleghorne: Ellen Cleghorne (born November 29, 1965) is an American actress and comedian, best known as a cast member of "Saturday Night Live" from 1991 to 1995.  Cleghorne was the sketch comedy show's second African-American female repertory cast member, succeeding Danitra Vance in its eleventh season, and the first African-American female cast member to stay for more than one season.  She returned for its 40th anniversary special on February 15, 2015.  Cleghorne was ranked the 69th greatest "Saturday Night Live" cast member by "Rolling Stone" magazine.

Jon Lovitz: Jonathan Michael Lovitz (born July 21, 1957) is an American comedian, actor and singer, best known as a cast member of "Saturday Night Live" from 1985 to 1990.  He starred as Jay Sherman in "The Critic" and has appeared in numerous other television series and films.

The Producers (2005 film): The Producers is a 2005 American musical comedy film directed by Susan Stroman and written by Mel Brooks and Thomas Meehan based on the eponymous 2001 Broadway musical, which in turn was based on Brooks's 1967 film of the same name starring Zero Mostel, Gene Wilder and Andreas Voutsinas.  The film stars an ensemble cast led by Nathan Lane, Matthew Broderick, Uma Thurman, Will Ferrell, Gary Beach, Roger Bart, and Jon Lovitz.  Creature effects were provided by Jim Henson's Creature Shop.

Luke Null: Luke Null (born July 7, 1990 in Cincinnati, Ohio) is an American actor, comedian, and singer, who currently works as a cast member on "Saturday Night Live", having joined the show at the start of its forty-third season.  Prior to joining the show, Null was known for performing at the iO Theater in Chicago specializing in musical comedy.  Luke Null is now the second "SNL" cast member born in the 1990s after Pete Davidson (though Null is older than Davidson by three years).

Kenan Thompson: Kenan Thompson ( born May 10, 1978) is an American actor and comedian.  He is known for his work as a cast member of NBC's "Saturday Night Live".  In his teenage years, he was an original cast member of Nickelodeon's sketch comedy series "All That."  Thompson is also known for his roles as Kenan Rockmore in the sitcom "Kenan & Kel", Russ Tyler in "The Mighty Ducks" franchise, Dexter Reed in the film "Good Burger", and "Fat Albert" as the title character.  In his early career, he often collaborated with fellow comedian and "All That" cast member Kel Mitchell.  He is ranked at #88 on VH1's 100 Greatest Teen Stars.

Supporting paragraphs: The Producers (2005 film) Jon Lovitz
Answer: Jon Lovitz