It was previously reported that Green and his Robot Chicken co-creator Matthew Senreich would work with Lucasfilm Animation on the upcoming series.
The actor told io9 that the animation is still in the early stages of development, saying: "It's probably like two years, legitimately, before anybody will have anything real to say about that. It's so early, but it is going to be awesome. I promise, we're not going to f**k it up. We take it really seriously. We won't abuse [your] trust."
He also revealed details of the latest Robot Chicken special to poke fun at the sci-fi franchise.
"It'll be sketches all over the canon, but there will be a more linear canon... actually from before the first prequel to Return Of The Jedi," he said.
Green - who also provides the voice of Chris Griffin in Family Guy - admitted that one joke in the Robot Chicken special also appears in Family Guy's forthcoming Return of the Jedi spoof.
"[The joke is] funny in both directions," he claimed. "It's like it's a different joke... or it's the same joke told in a different way."