Dave Prowse always writes 'Dave Prowse is Darth Vader' but on my son's autograph he wrote 'To Christopher, The Force is With You, Darth Vader, Dave Prowse'. He was very chatty with my lad as he was dressed as Jedi!
I also got Garrick Hagon who wrote 'Red 3 Standing by!' Awesome!
Nat Tena wrote 'Enjoy the epic saga' on my Game of Thrones pic.