Question: Which writer contributing to the comedy film "Meet Wally Sparks" is also a stand-up comedian?

Context articles: Stand-up comedy
Harry Basil
Simeon Courtie
Michael Yo
Robin Williams
Rodney Dangerfield
Martin Høgsted
Vignesh Karthick
Papa CJ
Meet Wally Sparks

Stand-up comedy is a comic style in which a comedian performs in front of a live audience, usually speaking directly to them.
 The performer is commonly known as a comic, stand-up comic, stand-up comedian, or simply a stand-up.
 In stand-up comedy, the comedian usually recites a grouping of humorous stories, jokes and one-liners typically called a monologue, routine, or act.
 Some stand-up comedians use props, music, or magic tricks to "enhance" their acts.
 Stand-up comedy is often performed in comedy clubs, bars and pubs, nightclubs, neo-burlesques, colleges and theatres. Outside of live performance, stand-up is often distributed commercially via television, DVD, CD and the internet.
Harry Basil is a stand-up comedian and comedy club operator, known for his impressions of Arnold Schwarzenegger and Superman.
 As an actor, Basil appeared in the film "Peggy Sue Got Married".
 His film credits include "Meet Wally Sparks", which he co-wrote with Rodney Dangerfield.
Simeon Courtie is an English broadcaster and writer.
 He is known as a TV presenter on Children's BBC, as a radio presenter on BFBS, and BBC local radio, a TV and radio comedy writer contributing to programmes including "Have I Got News For You?
", and is the author of the humorous travel book "The Long and Whining Road".
Michael Yo Simmons (born November 20, 1974) is an American actor, TV Host, Hollywood expert and stand-up comedian.
 He currently co-hosts The Insider on CBS, as well as Yo Show on Yahoo! TV, which garners an average of 1.5 million views per episode.
 Yo also appears regularly on the comedy panel of E!'s Chelsea Lately and as a guest host for The Talk on CBS.
 Yo continues to appear as a Pop Culture expert on HLN's Showbiz Tonight hosted by A.J. Hammer.
 Michael tours the country as a professional stand-up comedian, appearing at the Improv’s, Stand-Up Live, Palms Hotel, Laugh Factory, Comedy Store, and Comedy Juice among others.
 His Hot Mess Tour also performs at colleges throughout the country.
Robin McLaurin Williams (July 21, 1951 – August 11, 2014) was an American stand-up comedian and actor.
 Starting as a stand-up comedian in San Francisco and Los Angeles in the mid-1970s, he is credited with leading San Francisco's comedy renaissance.
 After rising to fame as Mork in "Mork & Mindy" (1978–82), Williams established a career in both stand-up comedy and feature film acting.
 He was known for his improvisational skills.
Rodney Dangerfield (born Jacob Cohen, November 22, 1921 – October 5, 2004) was an American stand-up comedian, actor, producer and screenwriter known for the catchphrase "I don't get no respect!"
 and his monologues on that theme.
 He is also remembered for his 1980s film roles, especially in "Easy Money", "Caddyshack", and "Back to School".
Martin Høgsted (born in 1982, Dianalund) is a Danish stand-up comedian.
 He is known for UPS!
 Det er live, and as writer from Live fra Bremen.
 He debuted as comedian in 2006 on Comedy Zoo in Copenhagen and won DM i stand-up (Best Danish stand-up comedian) in 2008.
Vignesh Karthick is an Indian film and television actor, Video jockey, Stand-up comedian Radio jockey and Film director.
 He started his career by acting and directing Short films and participating in reality shows, including the comedy game shows like "Athu Ithu Ethu" in STAR Vijay and Comedy Jodies in Zee Thamizh as a stand-up comedian.
 He later went on to host of those shows, especially the popular shows like "Suriya Vanakkam", "Thapal Petti En 8484" and many other shows in Sun TV and STAR Vijay respectively.
 In 2015, he started to work as Radio jockey with the radio station BIG FM 92.7.
 In 2016, he made his acting debut in films with "Natpadhigaram 79" and in television with "Pagal Nilavu".
 He will also making directorial debut in films with "Yenda Thalaila Yenna Vekkala".
Papa CJ is a stand-up comedian from India.
 In November 2014 he won the 'Asia's Best Stand-up Comedian' award by "Top 10" Magazine in Kuala Lumpur.
 He has toured sell-out shows across five continents and in October 2011 he taped a Showtime USA Stand-up Comedy Special with Russell Peters in Amsterdam.
 Papa CJ’s international TV credits include shows on various channels including Comedy Central, Paramount, ITV, BBC, The Comedy Channel, NBC, Showtime USA, Omni TV and MTV.
 He has been invited as a guest on multiple radio shows across the globe, including NPR in the USA and the BBC.
 He has also been seen on multiple TV channels in India.
Meet Wally Sparks is a 1997 American comedy film directed by Peter Baldwin, written by Harry Basil and Rodney Dangerfield in the title role.
 It also stars Dangerfield, Debi Mazar, Michael Weatherly, Cindy Williams, Alan Rachins, Burt Reynolds and David Ogden Stiers.