As a vampire, Dirk terrorized Tim Shaw, Judith Collins, and Rachel Drummond. Dirk had also murdered Carl Collins' finance, Pansy Faye. He tried to get Barnabas Collins to return Laura to him; when Barnabas failed, Dirk arranged the murder of Rachel Drummond. Dirk was finally destroyed when Edward Collins followed Judith to an abandoned house (where he had his coffin hidden) and staked him through the heart.