<Li> Damon Williams as Clark Lincoln (season 3), a former motorcross rider and X Games participant who now works as an ER nurse and starts a fling with Deran . </Li> <Li> Denis Leary as Billy (season 3), Deran's drifter father who Smurf kicked out years ago . </Li> <Li> Dichen Lachman as Frankie (season 3), Billy's edgy, free - spirited and dangerous younger girlfriend . </Li> <Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 10 </Td> <Td_colspan="1"> June 14, 2016 (2016 - 06 - 14) </Td> <Td> August 9, 2016 (2016 - 08 - 09) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 13 </Td> <Td_colspan="1"> May 30, 2017 (2017 - 05 - 30) </Td> <Td> August 29, 2017 (2017 - 08 - 29) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 13 </Td> <Td_colspan="1"> May 29, 2018 (2018 - 05 - 29) </Td> <Td> August 21, 2018 (2018 - 08 - 21) </Td> </Tr> </Table>

Who plays billy's girlfriend in animal kingdom