<Tr> <Th> Story by </Th> <Td> George Lucas </Td> </Tr> <Tr> <Th> Starring </Th> <Td> <Ul> <Li> Mark Hamill </Li> <Li> Harrison Ford </Li> <Li> Carrie Fisher </Li> <Li> Billy Dee Williams </Li> <Li> Anthony Daniels </Li> <Li> David Prowse </Li> <Li> Kenny Baker </Li> <Li> Peter Mayhew </Li> <Li> Frank Oz </Li> </Ul> </Td> </Tr> <Ul> <Li> Mark Hamill </Li> <Li> Harrison Ford </Li> <Li> Carrie Fisher </Li> <Li> Billy Dee Williams </Li> <Li> Anthony Daniels </Li> <Li> David Prowse </Li> <Li> Kenny Baker </Li> <Li> Peter Mayhew </Li> <Li> Frank Oz </Li> </Ul> <Li> Billy Dee Williams </Li>

When did luke skywalker find out darth vader was his father