Peri Brown, also known as Perpugilliam Brown, is a fictional character played by Nicola Bryant in the long-running British science fiction television series Doctor Who.An American college student (her passport lists her residence as Pasadena, California) majoring in botany, Peri is a companion of the Fifth and Sixth Doctors and a regular in the programme from 1984 to 1986. Peri appeared in 11 stories (33 Episodes).