<Tr> <Th> Actor </Th> <Th> Character </Th> <Th_colspan="4"> Season </Th> </Tr> <Tr> <Th> </Th> <Th> </Th> <Th> </Th> <Th> </Th> </Tr> <Tr> <Td> Ernie Hudson </Td> <Td> Jacob </Td> <Td_colspan="4"> Recurring </Td> </Tr> <Tr> <Td> Brittany Ishibashi </Td> <Td> Erica </Td> <Td_colspan="1"> Guest </Td> <Td_colspan="1"> Recurring </Td> <Td_colspan="1"> </Td> <Td_colspan="1"> Guest </Td> </Tr>

Who plays frankies sister in grace & frankie