Maloney started off as a production assistant, and got assigned to Doctor Who. He decided he really liked the show, so when he finished his director's training, he lobbied to get to direct it. Since nobody else really wanted to, they gave him almost half of season 6. He worked on some other shows, but returned multiple times. In his later stories, he took a more active role with the scripts than most directors, cutting out padding and rewriting scenes to make them more exciting.