After five weeks training, the comedian completed 43 marathons in 51 days, clocking up well over 1,000 miles on his epic journey to raise cash for Sports Relief/Comic Relief.

The total amount he raised isn't clear, but considering the national press exposure he's garnered on his trails (as well as some self-promotion via pictures on Twitter, like above), the full figure should be a fantastic achievement.

Which other famous stars have put their careers aside to raise some cash for those in need?