British actor Benedict Cumberbatch was joined by his real life parents for an episode of detective series 'Sherlock'.

Cumberbatch reprised his role as Sherlock Holmes in the latest installment of the popular show, which aired in Britain on New Year's Day, and his parents joined him for the special episode.

Benedict Cumberbatch 'Sherlock'
Benedict Cumberbatch

Timothy Carlton and Wanda Ventham, who are both actors, played Holmes' parents, reports

Cumberbatch says of their appearance in Sherlock: "(I was) so proud of them. They're Equity (actors union) card-carrying members but you know it was nerve-wracking because they are actors as well and yet they were brilliant and they were fantastic."