David Attenborough - 95
David Attenborough is a UK national broadcasting treasure. He always had a keen interest in nature and pursued his studies in Natural Sciences at Cambridge. After his military service, he started working for the BBC, primarily on their natural history shows. He is most famous for his own nature documentaries, in which he narrates amazing footage with his distinct voice. He's 95 now and has stated he doesn't plan to retire anytime soon.