Question: Luke Null, is an American actor, comedian, and singer, who currently works as a cast member on which NBC comedy series, premiered on September 30, 2017, and the forty-third season?
Context: Robert Cannavale ( ; ] ; born May 3, 1970) is an American actor known for his leading role as Bobby Caffey in the first two seasons of the crime drama series "Third Watch".  Cannavale also had a recurring role on the NBC comedy series "Will & Grace" as Will Truman's long-term boyfriend Officer Vincent "Vince" D'Angelo, for which he won the 2005 Primetime Emmy Award for Outstanding Guest Actor in a Comedy Series, and portrayed Gyp Rosetti during the third season of the HBO drama series "Boardwalk Empire", for which he won the 2013 Primetime Emmy Award for Outstanding Supporting Actor in a Drama Series.  In 2016, he starred in the HBO drama series "Vinyl", produced by Martin Scorsese and Mick Jagger. "General Hospital" is the longest running American television serial drama, airing on ABC.  Created by Frank and Doris Hursley, the series premiered on April 1, 1963.  The longest-running cast member is Leslie Charleson, who has portrayed Dr. Monica Quartermaine since August 17, 1977, also making her one of the longest-tenured actors in American soap operas.  Former cast member Rachel Ames was previously the series' longest-running cast member, portraying Audrey Hardy from 1964 to 2007, and making guest appearances in 2009 and 2013, the latter for the series' fiftieth anniversary.  Ames made a special appearance on October 30, 2015.  Actors Genie Francis and Kin Shriner, who portray Laura Spencer and Scott Baldwin, are the second and third longest-running cast members, having joined "General Hospital" in February and August 1977, respectively.  Actress Jacklyn Zeman — who portrays Bobbie Spencer — is the fourth longest-running cast member, joining the serial in December 1977.  Actress Jane Elliot, who joined the serial in June 1978 as Tracy Quartermaine, is the fifth longest-running cast member, joining "General Hospital" in June 1978 until her departure in May 2017.  Former cast member Anthony Geary, who portrayed Luke Spencer, was the sixth longest-running cast member, having joined "General Hospital" in November 1978.  The following list is of cast members who are currently on the show: the main and recurring cast members, or those who are debuting, departing or returning to the series. The forty-third season of the NBC comedy series "Saturday Night Live" premiered on September 30, 2017 with host Ryan Gosling and musical guest Jay-Z during the 2017–2018 television season.  Like the final four episodes of season 42, season 43 will be broadcast live in all four time zones within the contiguous United States. Luke Youngblood (born 12 June 1986) is an English actor.  He is known for playing Ben in "The Story of Tracy Beaker", young Simba in "The Lion King (musical)" at several London venues, Lee Jordan in the "Harry Potter" film series, and Magnitude on the NBC comedy series "Community".  From 2015 to 2016, he played Sid in the ABC musical comedy series "Galavant". Jane Krakowski ( ; born Jane Krajkowski; October 11, 1968) is an American actress and singer.  She is best known for her role as Jenna Maroney in the NBC comedy series "30 Rock", for which she received four Primetime Emmy Award nominations for Outstanding Supporting Actress in a Comedy Series.  Other notable television credits include Elaine Vassal on "Ally McBeal" and Jacqueline White in the Netflix original comedy series "Unbreakable Kimmy Schmidt". Thomas Christopher "Chris" Parnell (born February 5, 1967) is an American actor, voice artist, comedian, and singer.  He is best known as a cast member on NBC's "Saturday Night Live" from 1998 to 2006 and for his role as Dr. Leo Spaceman on NBC's comedy series "30 Rock".  In animation, he voices Cyril Figgis on the FX comedy series "Archer" and Jerry Smith on the Adult Swim sci-fi comedy series "Rick and Morty".  He is also notable for his voice work on the animated PBS series, "Wordgirl", particularly as the narrator.  He also voices "The Progressive Box," in a multitude of spots featuring the character, in Progressive Corporation insurance advertisements. Michael Herbert "Mike" Schur (born October 29, 1975) is an American television producer and writer, best known for his work on the NBC comedy series "The Office" and "Parks and Recreation", the latter of which he co-created along with Greg Daniels.  He also co-created the FOX comedy series "Brooklyn Nine-Nine", and created the NBC comedy series "The Good Place".  Schur is also known for his small role on "The Office" as Mose Schrute, the cousin of Dwight Schrute. "General Hospital" is the longest running American television serial drama, airing on ABC.  Created by Frank and Doris Hursley, the series premiered on April 1, 1963.  Former cast member Rachel Ames was previously the series' longest-running cast member, portraying Audrey Hardy from 1964 to 2007, and making guest appearances in 2009 and 2013, the latter for the series' fiftieth anniversary.  Ames made a special appearance on October 30, 2015.  Anthony Geary, who has portrayed Luke Spencer, was the fourth longest-running cast member, having joined "General Hospital" in November 1978.  Geary left the show on July 27, 2015.  This is a list of former, notable guest appearances, and deceased cast members. 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 ( 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.
Answer: Saturday Night Live