Career
Rendell grew up in Devon and joined the Royal Marine aged sixteen, going on to serve in the Special Boat Service. In the 1970s Rendell was stationed in the Falkland Islands as part of Naval Party 8901. The party fielded three candidates in the 1989 general election, none of whom were elected.
Rendell was also a trustee of the Museum and National Trust, chaired the Media Trust, and was a director of Seafish (Falklands) Limited.
Rendell was elected to the Legislative Council at the 2005 general election, but did not stand for re-election in the 2009 general election.