Dara Ó Briain 12Foot6. In 2013, Ó Briain joined Jack Dee, Chelsee Healey, Greg James, Melanie C and Philips Idowu in "Through Hell and High Water", a Comic Relief challenge which involved British celebrities canoeing the most difficult rapids of the Zambezi River. They raised over £1 million for the charity. "Dara and Ed's Great Big Adventure", a 2015 three-part fly-on-the-wall television series, followed Ó Briain and Ed Byrne on their journey by car down the Pan-American Highway. In June 2015, "Dara Ó Briain Meets Stephen Hawking", in which Ó Briain travels to Cambridge for a series of interviews with theoretical physicist Stephen
The Apprentice (UK series 6) for subsequent series at the request of Sugar. It is also the first series to feature Karren Brady as Margaret Mountford's successor to the role of Sugar's aide in the programme, after her initial appearance in this role for the first series of "Young Apprentice". Despite announcing the previous year she was leaving the programme, Mountford retained a role within "The Apprentice" by taking over Brady's role as an interviewer in the Interviews stage. Alongside the standard twelve episodes, two specials were aired alongside this series – "The Final Five" on 9 December; and "Why I Fired Them" on 16