Question: Which comedian who is currently a regular on "Whose Line is it Anyway" has performed in Charlotte's Shorts?

Context paragraphs:
Whose Line Is It Anyway? Australia: Whose Line is it Anyway?  Australia (also known as Whose Line?  and Whose Line?  Oz) is a 10-part Australian improvisational comedy show, based on the British show of the same name, hosted by Tommy Little on Foxtel network's The Comedy Channel, premiering on 27 November 2016.

Drew Carey's Green Screen Show: Drew Carey's Green Screen Show is an improvisational comedy television series that aired in the fall of 2004 on The WB, and the fall of 2005 on Comedy Central.  The show was hosted by Drew Carey, and was somewhat a follow-up to the show he formerly hosted, "Whose Line Is It Anyway? ".  The distinguishing feature of the show was that the improv games were performed in front of a "green screen" (similar to "Newsflash" game from "Whose Line?") , with animation, music and sound effects inserted in post-production.  The show was otherwise very similar to "Whose Line?"  and featured many of the same performers and games.

Whose Line Is It Anyway? (radio series): Whose Line Is It Anyway?  (abbreviated to Whose Line?  or WLIIA) is a short-form improvisational comedy radio programme.  A television series of the same name was based on it in 1988.  Following the conclusion of the British run in 1998, ABC began airing a version for the United States audience.

Wayne Brady: Wayne Alphonso Brady (born June 2, 1972) is an American actor, singer, comedian, and television personality, known for his work as a regular on the American version of the improvisational comedy television series "Whose Line Is It Anyway? " He was the host of the daytime talk show "The Wayne Brady Show", the original host of Fox's "Don't Forget the Lyrics! ", and has hosted "Let's Make a Deal" since its 2009 revival.  Brady also performed in the Tony Award–winning musical "Kinky Boots" on Broadway as Simon and as drag queen Lola from November 2015 to March 2016.

Archie Hahn (actor): Archie Hahn (sometimes credited as Archie Hahn III, born November 1, 1941) is an American character actor and improviser best known for his appearances on the British version of "Whose Line is it Anyway? " and the 1988 movie "".  He has also appeared in "Phantom of the Paradise" (1974), "Pray TV" (1980), "This Is Spinal Tap" (1984), "Brewster's Millions" (1985), "The Brady Bunch Movie" (1995), and many Joe Dante films including "Amazon Women on the Moon" (1987), "" (1990) and "Small Soldiers" (1998).  In two of his final appearances on "Whose Line is it Anyway?" , Hahn unexpectedly brought props to use as he improvised, first castanets and then a pair of false teeth.

Whose Line Is It Anyway? (U.S. TV series): Whose Line Is It Anyway?  (often known as simply Whose Line?)  is an American improvisational comedy show, which was originally hosted by Drew Carey on ABC and ABC Family and ran from August 5, 1998 to December 15, 2007.  A revival of the show, hosted by Aisha Tyler, began airing on The CW on July 16, 2013.

Whose Line Is It Anyway? (UK TV series): Whose Line is it Anyway?  (abbreviated to Whose Line?  or WLIIA) is a short-form improvisational comedy television show.  Originally a British radio programme, it moved to television in 1988 as a series made for Channel 4.

Charlotte's Shorts: Charlotte's Shorts is a 90 minute live performance of Charlotte Dean's short stories.  The show has traditionally been cast with current and past Groundlings, such as Tim Bagley, Jim Rash, Jillian Bell, Jordan Black, Gary Anthony Williams, Jonathan Stark, Michael Hitchcock, Andrew Friedman, Daniele Gaither, Mindy Sterling, and Laraine Newman.  In 2014, "Charlotte's Shorts" was performed at various theaters in Los Angeles, including two shows at The Groundlings Theater.  "Charlotte's Shorts" is prominently featured in SF Sketchfest and The Hollywood Fringe Festival.

Shel Mi HaShura HaZot?: Shel Mi HaShura HaZot?  (Hebrew: של מי השורה הזאת‎ ‎ , lit.  "Whose Line Is It?")  is an Israeli version of the British improvisational comedy TV show Whose Line Is It Anyway? , which aired from 2000 to 2001 on Channel 2 and from 2006 to 2007 on Channel 10.  It was hosted by Shlomo Baraba in the first two seasons and by Idan Alterman in the third and fourth.  The show consisted of a panel of four performers who create scenes on the spot.

Gary Anthony Williams: Gary Anthony Williams (born March 14, 1966) is an American actor and comedian who provided the voice of Uncle Ruckus on "The Boondocks", Yancy Westridge in the video game "Alpha Protocol", and Horace Warfield in "".  He appeared on the television series "Weeds", "Boston Legal", "Blue Collar TV", and as "Abe" Kenarban in "Malcolm in the Middle".  Williams co-founded and is Artistic Director of the L.A. Comedy Shorts film festival in Hollywood, California.  He also starred alongside Cedric the Entertainer on the hit TV Land sitcom "The Soul Man".  Williams is currently a regular on "Whose Line is it Anyway? ".

Supporting paragraphs: Charlotte's Shorts Gary Anthony Williams
Answer: Gary Anthony Williams