Arizona Robbins, M.D. is a fictional character on the ABC television series Grey's Anatomy, portrayed by Jessica Capshaw. She was introduced in the show's fifth season as an attending surgeon and the new chief of pediatric surgery. Originally contracted to appear in three episodes, Capshaw's contract was extended to the remainder of the fifth season, with her becoming a series regular in the sixth season. Robbins has been characterized as "quirky", and is well known for wearing roller skates and a Holly Hobbie pink scrub cap, designed to appeal to her younger patients. She was established as a love-interest for orthopedic resident Callie Torres after the Torres' storyline with Erica Hahn was cut short due to what series creator Shonda Rhimes called "a lack of chemistry". Shonda Rhimes was in contrast pleased with the chemistry between Robbins and Torres, citing the addition of Capshaw to the cast as an element of the season of which she was most proud. Initial media reaction to the character was positive.