wˈɑːt ɐpˈɪɹd ɪn ɐn ˈɛpɪsˌoʊd ʌvðə bˌiːbˌiːsˈiː tˌiːvˈiː sˈɪɹiz nˈuː tɹˈɪks, hæd ɐ mˈaɪnɚ ɹˈoʊl ɪn ɡˈaɪ ɹˈɪtʃiz ʃˈɜːlɑːk hˈoʊmz ænd ɐpˈɪɹd ɪn ɐ pɹədˈʌkʃən ʌv mˈædnəs ɪn vɐlˈɛnʃiə.
Watt appeared in an episode of the BBC TV series New Tricks, had a minor role in Guy Ritchie's Sherlock Holmes and appeared in a production of Madness In Valencia.