Actor William Shatner made his name as Captain Kirk in Star Trek during the 1960s but during the three years of filming the programme he was unaware that he was unpopular with some members of the cast.
He told HARDtalk's Stephen Sackur he never had a bad word with any of them and it was only years later he became aware of their feelings.
You can watch the full interview on BBC World News on Tuesday 23 October at 03:30, 08:30, 15:30 and 20:30 GMT and on the BBC News Channel at 0430 GMT on Tuesday and 0030 GMT on Wednesday 24 October.
Find out who is coming up on the programme by following us on
or subscribe to our