<Table> <Tr> <Th_colspan="2"> 276--"Twice Upon a Time" </Th> </Tr> <Tr> <Td_colspan="2"> Doctor Who episode </Td> </Tr> <Tr> <Td_colspan="2"> Promotional image for the episode </Td> </Tr> <Tr> <Th_colspan="2"> Cast </Th> </Tr> <Tr> <Td_colspan="2"> Doctors <Ul> <Li> Peter Capaldi (Twelfth Doctor) </Li> <Li> David Bradley (First Doctor) </Li> <Li> Jodie Whittaker (Thirteenth Doctor) </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> Companion <Ul> <Li> Pearl Mackie (Bill Potts) </Li> </Ul> </Td> </Tr> <Tr> <Td_colspan="2"> Others <Ul> <Li> Mark Gatiss--The Captain </Li> <Li> Jenna Coleman--Clara </Li> <Li> Matt Lucas--Nardole </Li> <Li> Nikki Amuka - Bird--Helen Clay </Li> <Li> Toby Whithouse--German Soldier </Li> <Li> Lily Travers--Polly </Li> <Li> Jared Garfield--Ben Jackson </Li> <Li> Nicholas Briggs--Voice of the Daleks </Li> </Ul> </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Directed by </Th> <Td> Rachel Talalay </Td> </Tr> <Tr> <Th> Written by </Th> <Td> Steven Moffat </Td> </Tr> <Tr> <Th> Produced by </Th> <Td> Peter Bennett </Td> </Tr> <Tr> <Th> Executive producer (s) </Th> <Td> Steven Moffat Brian Minchin </Td> </Tr> <Tr> <Th> Incidental music composer </Th> <Td> Murray Gold </Td> </Tr> <Tr> <Th> Length </Th> <Td> 60 minutes </Td> </Tr> <Tr> <Th> Originally broadcast </Th> <Td> 25 December 2017 </Td> </Tr> <Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Td_colspan="2"> <Table> <Tr> <Td> ← Preceded by </Td> <Td> Followed by → </Td> </Tr> <Tr> <Td> "The Doctor Falls" </Td> <Td>--</Td> </Tr> </Table> </Td> </Tr> <Tr> <Td_colspan="2"> Doctor Who episodes (1963--1989) Doctor Who episodes (2005--present) </Td> </Tr> </Table> <Tr> <Th_colspan="2"> 276--"Twice Upon a Time" </Th> </Tr>

Who is the captain twice upon a time