Jori Woodman
Jori Woodman was the costume designer on Doctor Who (1996). She would thus have had primary responsibility for creating the iconic "look" of the Eighth Doctor.
She has a long history of working on mostly North American television movies and theatrical films that stretches back to the late 1980s. Still, she did some series work, such as her stint on Wiseguy, produced by then-future Doctor Who executive producer, Alex Beaton.
Amongst her diverse body of work are 1989's The Trial of the Incredible Hulk, another failed back door pilot in the science fiction genre; 1996's big-budget miniseries, Titanic; the 2002 Bravo channel series Breaking News; 2004's Wayans family comedy, White Chicks' and 2011's Final Destination 5.