No introduction is necessary. One of the great minds of our time is gone. Best known for his work, "A Brief History of Time". Awards that he achieve include the Albert Einstein Award, the Wolf Prize, and the Copley Medal but unfortunately never won the Nobel.
While he'll be remembered for his many great achievements in his life, and the popularisation of Science among the masses, Stephen Hawking will also be remembered for being the only celebrity to cameo as themselves in Star Trek: The Next Generation, when he featured in a poker game with Data, Newton and Einstein.
His work, along with that of his colleague, Kip Thorne, was the basis and inspiration of the much loved, Interstellar
Involving a plot where the main characters must find and understand the link between Einstein's 'General Relativity Theory' and Quantum Mechanics - the theory popularly known as The Theory of Everything.
May you keep on flying through the universe, in a constant journey of discovery that never ceases even though your time on this small planet has ended. We that are left behind will not forget your contributions to human understanding of the structure of the greater universe.
As for all the wagers you had going with colleagues about the results of their work, I'm sure they'll honour their debts somehow, with all those bottles of wine they owe you.
There are a couple of good articles about his cameos, in addition to his numerous appearances as himself in various science shows.
- Star Trek: Next Generation
- The Big Bang Theory
- Hitchhiker's Guide
- Monty Python
- Late Night with Conan - Twigging Jim Carrey
And, as always, a list of his appearances can be found at his IMDB listing.