Question: Mark Anthony Richard Powell is a British fashion designer who has gained a celebrity clientele with custom from an English actor who made his acting debut in what television film?  

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Stuart Vevers: Stuart Vevers is a British fashion designer.  He graduated from the University of Westminster in 1996.  His first job was at Calvin Klein, followed by Bottega Veneta, Givenchy and Louis Vuitton, where he worked with Marc Jacobs.  He joined Mulberry as creative director in 2005 and was instrumental in the company's success, transforming their leather goods into the must-have bags.  He has also collaborated with Luella Bartley and Designer of the Year, Giles Deacon.  In 2006, he won the British Fashion Council's Accessory Designer of the Year award.  In July 2007 it was announced that he had been appointed creative director of Loewe, and, on 25 June 2013, Vevers was announced to be the executive creative director at American label Coach.

Daniel Radcliffe: Daniel Jacob Radcliffe (born 23 July 1989) is an English actor best known for his role as Harry Potter in the film series of the same name.  He made his acting debut at 10 years of age in BBC One's 1999 television film "David Copperfield", followed by his cinematic debut in 2001's "The Tailor of Panama".  At age 11, he was cast as Harry Potter in the first "Harry Potter" film, and starred in the series for 10 years until the release of the eighth and final film in 2011.

British Fashion Awards: The British Fashion Awards is a ceremony held annually in the United Kingdom since 1989 to showcase British designers and present awards to those who have made the most outstanding contributions to the fashion industry during the year.  As a result, London Fashion Week ranks alongside New York, Milan and Paris as one of the 'Big Four’.  The main awards include that of British Designer of the Year, and Outstanding Contribution as well as awards to the 'most-fashionable' celebrities in various fields.  The ceremony is organized by the British Fashion Council and runs as part of London Fashion Week each February.

Gifi Fields: Gordon Ivan "Gifi" Fields (born June 1951) is a British fashion designer and businessman.  He is a co-founder of the British Fashion Council and one of the creators of the Rah-rah skirt.

Mimi So: Mimi So is a New York City-based American jewelry designer, known for a "distinctive and definitive fashion vibe" and a large celebrity clientele.  Her company was founded as a partnership with luxury conglomerate Richemont, which subsequently sold its interest to Mimi So.

Elspeth Gibson: Elspeth Gibson (born 1963 in Nottingham) is a British fashion designer, known for her feminine style of design.  Her designs are often characterised by lace, beading and embroidery.  Gibson was the British Fashion Council's New Generation Designer of the Year in 1998, and examples of her work are held in the design archive at the Victoria and Albert Museum.  Her clients have included Madonna, Zara Phillips, Cate Blanchett, Uma Thurman and Queen Rania of Jordan, for whom she has undertaken private commissions.

Mark Powell (clothing designer): Mark Anthony Richard Powell (born London November 11, 1960) is a British fashion designer whose emphasis on bespoke tailoring has gained a celebrity clientele with custom from actors George Clooney, Daniel Radcliffe and Martin Freeman, rock stars and style icons Bryan Ferry, Mick Jagger and Paul Weller and supermodel Naomi Campbell.

Julien Macdonald: Julien Macdonald OBE (born 19 March 1971 in Merthyr Tydfil) is a Welsh fashion designer who has appeared as judge on the television programme, "Britain & Ireland's Next Top Model".  In 2001, he was named "British Fashion Designer of the Year", and on 15 March 2001, was appointed as chief designer at Givenchy (Alexander McQueen's successor).  His "atelier" is at Old Burlington Street, London.

Christian Louboutin: Christian Louboutin (] ; born 7 January 1964) is a French fashion designer whose high-end stiletto footwear incorporates shiny, red-lacquered soles that have become his signature.  Initially a freelance designer for fashion houses, he started his own shoe salon in Paris, with his shoes finding favor with celebrity clientele.  He has partnered with other organizations for creative projects including limited edition pieces, gallery exhibits, and even a custom bar.  His company has since branched out into men's footwear, handbags, fragrances and makeup.

Cher Coulter: Cher Coulter is a British celebrity stylist and fashion designer.  She is known for her list of celebrity clientele, including Sienna Miller, Kate Bosworth, Elizabeth Olsen, and Rosie Huntington-Whiteley.

Supporting paragraphs: Mark Powell (clothing designer) Daniel Radcliffe
Answer: David Copperfield