Comedienne looks the biz for Who role Catherine wows fans in city shoot.
Catherine, 39, was dressed up to the nines as she pretended to be a high-flying businesswoman in a futuristic company.
Fans watched as she stepped into the sunshine with sleek and shiny hair and immaculate make-up for the new Dr Who episodes in Cardiffs Churchill Way.
Fan Nicola Rees, 26, said: Were used to seeing her as the scruffy teenager in her TV show.
She looked like a million dollars today like something out of Sex and the City.
It was a real thrill to see her. She is making her second appearance in the sci-fi series as David Tennants sidekick Donna. Dr Who viewers raved about her character when she starred in last years successful Christmas episode. The shows writer, Russell T Davies, said: Doctor Who and Catherine Tate is just the most irresistible combination, a genuine treat.