<Tr> <Th> Uncles </Th> <Td> Tucker McCall </Td> </Tr> <Tr> <Th> First cousins </Th> <Td> Devon Hamilton </Td> </Tr> <P> Mackenzie Browning is a fictional character from the CBS soap opera The Young and the Restless . The role is presently portrayed by Kelly Kruger, who portrayed the role from February 19, 2002, to July 1, 2003; she returned to the role on March 28, 2018 . Previously, the role was portrayed by Ashley Bashioum, Rachel Kimsey and Clementine Ford . </P> <P> Mackenzie is the daughter of Brock Reynolds and granddaughter of Katherine Chancellor . Much of her history revolves around her role in the teen scene of the series, her romance with Billy Abbott, and marriage to J.T. Hellstrom . </P>

Who is playing mac on young and restless