. "Michelle Nolden is a Canadian actress and director. She plays Robin Brooks on Numb3rs, Don longest-lasting girlfriend, and the woman he proposes to in \"Cause and Effect\". Michelle has been seen post Numb3rs as Vice President (later President) Kathleen Spencer on Nikita and Dr. Dawn Bell in Saving Hope."@en . . . . . . "Michelle Nolden"@en . . "Michelle Nolden is a Canadian actress and director. She plays Robin Brooks on Numb3rs, Don longest-lasting girlfriend, and the woman he proposes to in \"Cause and Effect\". Michelle has been seen post Numb3rs as Vice President (later President) Kathleen Spencer on Nikita and Dr. Dawn Bell in Saving Hope."@en .