Question: Who began his career in film as a visual effects artist at George Lucas's Industrial Light and Magic, Willard Huyck or Marcus Stokes?

Context paragraphs:
Marcus Stokes: Marcus Stokes is an American director.  Marcus began his career in film as a visual effects artist at George Lucas' Industrial Light and Magic (ILM).  After his work on major films such as "" and "I, Robot", Marcus began directing with a sci-fi short that was acquired by HBO.

Ken Ralston: Kenneth "Ken" Ralston (born 1954) is an American visual effects artist, currently the Visual Effect Supervisor and Creative Head at Sony Pictures Imageworks.  Ralston began his career at the seminal commercial animation and visual effects company, Cascade Pictures in Hollywood, where he worked on over 150 advertising campaigns in the early 1970s.  In 1976, he was hired at Industrial Light & Magic by Dennis Muren to help George Lucas create the effects for "Star Wars".  He remained in ILM for 20 years before joining Sony Pictures Imageworks as president.  Ralston is best known for his work in the films of Robert Zemeckis.

Harrison Ellenshaw: Harrison Ellenshaw (born Peter Ellenshaw, July 20, 1945 in Harrisburg, Pennsylvania) is an American matte painter, following his British-born father Peter Ellenshaw.  He started his career at Walt Disney Studios.  He later joined George Lucas's effects studio Industrial Light and Magic (ILM), where he produced many of the matte visual effects backgrounds for the films "Star Wars" (1977) and "The Empire Strikes Back" (1980).  He then returned to Disney to work on the film "Dick Tracy" (1990), and eventually headed Disney Studio's effects department, Buena Vista Visual Effects (BVVE).  He was also visual effects supervisor for "Tron" (1982), where he had the distinction of being the first person to have that credit in a film.

Richard Bluff: Richard Bluff is an English special effects supervisor.  Known for his works in Disney's visual effects company Industrial Light & Magic (ILM) as a digital matte artist and visual effects supervisor in acclaimed films such as "" (2005), "The Island" (2005), "Transformers" (2007-11), "Indiana Jones and the Kingdom of the Crystal Skull" (2008), "Star Trek" (2009), "Avatar" (2009), "The Avengers" (2012), "Cloud Atlas" (2012) "Pacific Rim" (2013), "The Big Short" (2015) and "Doctor Strange" (2016), for which he received an Academy Award for Best Visual Effects nomination at the 89th Academy Awards.  He previously worked at Blur Studio as digital artist.

Willard Huyck: Willard Huyck (born September 8, 1945) is an American screenwriter, director and producer, best known for his association with George Lucas.

Howard the Duck (film): Howard the Duck (titled Howard: A New Breed of Hero in the UK) is a 1986 American science-fiction comedy film directed by Willard Huyck and starring Chip Zien, Lea Thompson, Jeffrey Jones, and Tim Robbins.  Produced by Gloria Katz and written by Huyck and Katz, with George Lucas as executive producer, the screenplay was originally intended to be an animated film based on the Marvel comic book of the same name, but the film adaptation became live-action because of a contractual obligation.  Although several TV adaptations of Marvel characters had aired during the preceding 21 years, this was the first theatrical released feature film, coming after the serial "Captain America".

Christopher Townsend: Christopher Townsend is a visual effects supervisor.  He has worked in the visual effects industry for over 20 years.  For over a decade, he was an artist and supervisor at Industrial Light and Magic, and in 2007 became a freelance visual effects supervisor.  He worked on "Journey to the Center of the Earth", the first ever stereoscopic motion picture shot and released digitally, "Wolverine", "Ninja Assassin", "" and "".  He was nominated for a BAFTA and an Academy Award for Best Visual Effects for his work on "Iron Man 3", oversaw nearly 3000 shots on "" and was the overall supervisor for "Guardians of the Galaxy Vol.  2".  In 2015 he was given an Honorary Doctor of Arts degree by his alma mater, Coventry University.

Industrial Light &amp; Magic: Industrial Light & Magic (ILM) is an American motion picture visual effects company that was founded in May 1975 by George Lucas.  It is a division of the film production company, Lucasfilm, which Lucas founded, and was created when Lucas began production of the film "Star Wars".  It is also the original founder company of the animation studio Pixar.

John Knoll: John Knoll (born October 6, 1962) is an American visual effects supervisor and chief creative officer (CCO) at Industrial Light & Magic (ILM).  One of the original creators of Adobe Photoshop (along with his brother, Thomas Knoll), he has also worked as visual effects supervisor on the "Star Wars" prequels and the 1997 special editions of the original trilogy.  He also served as ILM's visual effects supervisor for "Star Trek Generations" and "", as well as the "" series.  Along with Hal Hickel, Charles Gibson and Allen Hall, Knoll and the trios work on "" earned them the Academy Award for Best Visual Effects.

Carey Villegas: Carey Villegas is a visual effects artist who was nominated at the 83rd Academy Awards in the category of Best Visual Effects, for the film "Alice in Wonderland".  His nomination was shared with Sean Phillips, Ken Ralston and David Schaub.  Also for Alice in Wonderland, Carey won the 2010 Golden Satellite Award for Best Visual Effects and was nominated for the British Academy Award (BAFTA), Critics Choice Award, Saturn Award, and the Visual Effects Society Award (VES) for "Outstanding Visual Effects in a Visual Effects Driven Motion Picture".

Supporting paragraphs: Willard Huyck Marcus Stokes
Answer: Marcus Stokes