<Tr> <Th> First appearance </Th> <Td> "Lucky Penny (unseen)" "Something New" (seen) </Td> </Tr> <Tr> <Th> Last appearance </Th> <Td> "Last Forever" </Td> </Tr> <Tr> <Th> Created by </Th> <Td> Carter Bays Craig Thomas </Td> </Tr> <Tr> <Th> Portrayed by </Th> <Td> Cristin Milioti </Td> </Tr>

The mother episode how i met your mother