Zachary Quinto has revealed that his physical transformation into Star Trek's Mr Spock is "tricky".
The 35-year-old - who reprises his role as the half-Vulcan Star Fleet officer in JJ Abrams' sci-fi sequel, Star Trek Into Darkness - admitted that his beauty routine requires a lot of discipline.
"It's probably the most tedious part of playing the role in terms of the amount of time it takes. Once you're in the fourth or fifth month of shooting, the idea of continuing to pluck (the eyebrows) and cut (the fringe) and glue (the ears) is not the most thrilling thing to wake up to every morning at 2.30am when I have to go to work," he said.
The actor added: "But it's also very helpful and obviously an essential part of the character, so I don't resent it by any means. It's tricky."
He continued: "In addition, Spock is so much more physical in this film so I was having to do a lot of training and working out and sprinting while we were shooting. It was a much more challenging experience this time but I think, as a result, also conversely much more rewarding."
Zachary, who has also starred in TV series Heroes and American Horror Story, is pleased he has become friends with Leonard Nimoy, who originally played the role of Spock.
"I feel particularly gratified that I got to cultivate such a profound relationship with the man who originated the role that I play and I think that's something that means as much to me as the other things," he said.
"My association with Leonard and our friendship has developed and strengthened over the last four years. He has ascended to a really important place in my life so I'm grateful for that."
:: Star Trek Into Darkness is in cinemas now.