I always imagined myself as the pilot and anti-hero Grainger from the "Hooded Swan" series by Brian M. Stableford. He was a cynical and world weary character just trying to get on with his life.
Then again I related to 'Oscar' from Robert Heinlens book "Glory Road", a swashbuckling modern man in alternative universes, with a mild case of culture shock thrown into the bargain.
All of which is a far cry from the character that my partner likened me to when posed the question. She says I'm more like Toad out of "Wind in the Willows"...mostly because I've got "The attention span of a gnat on LSD".