Mark Hamill is one of the many actors that will appear in Star Citizen, the extremely well funded Kickstarter Space simulation game that has raised an estimated $99 million dollars with pre-launch crowdfunding. Apparently Star Citizen is bringing on some very talented actors such as Mark Hamill, Gary Oldman, Gillian Anderson & John Rhys Davies to help tell the games story. Hamill is no slouch to lending his voice and acting abilities to gaming as my first memory of him outside Star Wars* was Adrian Ripburger in Full Throttle and went on to later star in Wing Commander and the voice of the Joker in the Batman comics as well as video games. In this interview with PC Gamer he talks about Star Citizen, Wing Commander and Star Wars. He also drops some hints at some possible Force Awakens secrets to do with his character but nothing by way of spoilers so his NDA payment is secure.

https://robertsspaceindustries.com/squadron42

* I also have an early memory of Hamill post Star Wars in a film called Time Runner. I had a VHS tape of it I borrowed from some friends and watched it as much as I could before I had to return it. If anyone has this on VHS and wants to clear out some space, send it my way.

https://www.youtube.com/watch?v=s_Xzu_Nfysc