Jonas the (star) sailor in Gene Wolfe's Book of the New Sun novels. His near light speed ship had been gone so long that on its return to Urth, there were no space port facilities any more, and it crashed. Other crew members patched him up from available parts.
Steve Austin, The Six Million Dollar Man. Originally based on Martin Caidin's novel, Cyborg, the series was very successful, spawning followups the Bionic Woman, and the bionic dog.
The Daleks and Cybermen from Doctor Who (Daleks are a marginal case, they are actually vehicles for small and physically degenerate aliens)
... 23.9% from 45 to 64, and 6.9% who are 65 years of age or older. The median age is 34 years. For every 100 females there are 96.1 males. For every 100 females age 18 and ...