Question: What American actress, comedian, writer and producer best known for her work on Saturday Night Live, also starred in 2013 American romantic comedy-drama film Admission with Paul Rudd?
Context: Admission is a 2013 American romantic comedy-drama film directed by Paul Weitz and starring Tina Fey and Paul Rudd.  The film was released in the United States and Canada on March 22, 2013.  It is an adaptation of a novel by Jean Hanff Korelitz, also called "Admission". Bill Brasky is the subject of a series of sketches on the television sketch comedy program "Saturday Night Live".  The sketches were a recurring feature on the program between 1996 and 1998, and were written by cast member Will Ferrell and writer Adam McKay.  The sketch made a reappearance on the show on December 7, 2013, during which Ferrell made a guest appearance, as the episode was guest-hosted by his "Anchorman 2" co-star Paul Rudd. 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. A Night at the Roxbury is a 1998 American comedy film based on a recurring skit on television's long-running "Saturday Night Live" called "The Roxbury Guys".  "Saturday Night Live" regulars Will Ferrell, Chris Kattan, Molly Shannon, Mark McKinney and Colin Quinn star.  This film expands on the original Saturday Night Live sketches where the Roxbury Guys were joined by that week's host, and bobbed their heads to Haddaway's hit song "What Is Love" while being comically rejected by women at various clubs. SNL Studios is a production company, founded in July 1997 as a joint venture between "Saturday Night Live" executive producer Lorne Michaels and NBC Studios (now Universal Television, the production arm of NBCUniversal).  While this venture also initially included Paramount Pictures, it was dissolved following NBC's merger with Universal Studios.  On the television side, SNL Studios produces "Saturday Night Live" in association with Broadway Video.  Film productions, typically offshoots of Saturday Night Live' sketches, include, among others, "A Night at the Roxbury" and "Superstar". Gasping for Airtime: Two Years in the Trenches of Saturday Night Live is a 2004 memoir by former "Saturday Night Live" featured player Jay Mohr.  In it, Mohr recounts, among other things, his battles with panic attacks, being intimidated by castmates Rob Schneider and Ellen Cleghorne, his conflicts with Al Franken, his admiration for deceased castmates Chris Farley and Phil Hartman, the admission that he stole material from actor/comedian Rick Shapiro, and being depressed about his lack of sketch appearances. Saturday Night Live from Milano, Also known as Saturday Night Live Italy, was the Italian localisation of the popular US-comedy television series "Saturday Night Live", shown on Mediaset television channel Italia 1 from 2006. How Do You Know is a 2010 American romantic comedy-drama film directed, written, and produced by James L. Brooks, and starring Reese Witherspoon, Paul Rudd, Owen Wilson and Jack Nicholson. Elizabeth Stamatina "Tina" Fey ( ; born May 18, 1970) is an American actress, comedian, writer, and producer.  She is best known for her work on the NBC sketch comedy series "Saturday Night Live" (1997–2006) and for creating the acclaimed comedy series "30 Rock" (2006–2013) and "Unbreakable Kimmy Schmidt" (2015–present).  Fey is also known for her film work, with her most notable appearances including roles in "Baby Mama" (2008), "Date Night" (2010), "Muppets Most Wanted" (2014), "Sisters" (2015), and "Whiskey Tango Foxtrot" (2016). <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! "
Answer: Tina Fey