I can see him playing Dr. Otto Octavius.

I wonder what character for Mark Hamill should he play as?

Mark is great voice actor and I can see him doing more voice work for a character that he is not physically appearing in. I also don’t see him being a main character actor, but more cameo driven. I know he played Luke Skywalker in multiple films, but I just do not see him having that kind of role still. His cameo character could be reoccurring too, kind of like how Howard the Duck has been. I just don’t know yet who he would be best to play. I would like to see him in a MCU, especially since he does appear to be done with Star Wars.

I can see him voicing Galactus.

Star Wars has picked up some pretty good actors over the years. Newer ones like Daisy Ridley, John Boyega and Adam Driver I do not see joining the MCU, but Mark Hamill and Oscar Isaac are some really good choices for having a part. Now that the MCU is expanding, I expect Marvel Studios to pick up some actors who aren't as popular and get their big break as many did in the past, and some famous stars to be cast. Mark Hamill would be a good actor for the MCU, and I have heard rumors that, after Oscar Isaac's amazing performance as Apocalypse in X-Men: Apocalypse. He was the best part of that movie, and I would like to see him again as some sort of Marvel character. This would not be the first time Marvel has taken an actor for some of their previous media and put into the MCU: Chris Evans (Captain America) as Human Torch in the original Fantastic Four series, Laurence Fishburne (Bill Foster) as the voice of Sliver Surfer alongside Evans, Michael Jordan (Killmonger) as Human Torch in the ill-fated Fantastic Four reboot, Idris Elba (Heimdall) as Moreau in Ghost Rider: Spirit of Vengeance and Jon Favreau as Foggy Nelson in the 2003 Daredevil film.

Doctor Octopus