William (Zygon: When Being You Just Isn't Enough)

William was a wealthy man who was copied by the Human-Zygon hybrid Lauren Anderson while she was being mentored by Torlakh. They used his Visa card to buy clothing at the shop Monsoon. Lauren also drove to William's house in his Mercedes car, where she had sex with his wife. Before she woke up the next morning, Lauren had Torlakh leave William on his sofa, and left behind the receipts for her purchases in case William decided to return the clothes. (HOMEVID: Zygon: When Being You Just Isn't Enough)

Behind the scenes
This man is credited as simply "Wealthy man". However, his I.D. is briefly visible on-screen, during which his first name is clearly legible as "William". Although somewhat hard to decipher, the rest of his name appears to make him a namesake for producer and director Bill Baggs: "William B. Baggs".