Mark Williams, born on August 22, 1959, is a distinguished English actor whose career has spanned television, film, and stage. He is perhaps best known for his role as Horace in the beloved 1996 live-action adaptation of *101 Dalmatians*, a film that remains a must-have for collectors due to its nostalgic value and unique take on the classic animated feature. Williams' portrayal of the bumbling villain showcases his comedic talent, making this release a key addition to any Disney collection. In addition to *101 Dalmatians*, Williams gained further acclaim as Arthur Weasley in the *Harry Potter* film series, appearing in all seven installments from 2001 to 2011. His performances have not only endeared him to fans but have also made those DVDs and Blu-rays highly sought after by collectors. With a rich history in British television, including roles in *Doctor Who* and *Red Dwarf*, Williams continues to be a cherished figure in the realm of physical media, making his films essential for any serious collector.