Army officer then explorer celebrities

Sir Ranulph Twisleton-Wykeham-Fiennes, 3rd Baronet, OBE (born 7 March 1944), commonly known as Ranulph (Ran) Fiennes (/ˈrænʌlf ˈfaɪnz/), is an English adventurer and holder of several endurance records. He is also a prolific writer.