Anthony Daniels has reprised his role as C-3PO to pay tribute to his fellow Star Wars star Dave Prowse following his death.
The death of the 85-year-old actor, who played Darth Vader in the original Star Wars trilogy, was announced on Sunday.
He said: “Master Vader, I understand you can be careless of the rules of etiquette and protocol and have been known to be rather bad mannered.
“Should I ever have the pleasure of making your acquaintance, I would be happy to give you advice on the proper way to behave.”
Speaking in his own voice, Daniels, 74, added: “I’m not sure Vader would listen to that, would he?”
“Just seeing him was daunting,” he said.
“Of course, the difference was that he wasn’t personally anything like that.”
Daniels said Prowse made Darth Vader a “magical evil character” who made being bad “cool”.
“Dave kind of invented this ability to go to the dark side and be cool about it,” he said.
He added: “It was a lovely contrast because he was a very benign figure and really rather calm and relaxed.
“I’d see him round the set and he would be sort of lounging in one of those studio chairs and was very quietly spoken, very unassuming.”