It's often unnerving for actors to meet the people they play — even more so when that person is the British monarch.

Kristin Scott Thomas came face-to-face Thursday with Queen Elizabeth II, whom she is set to play on the London stage in The Audience.

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This composite shows British actress Helen Mirren and Queen Elizabeth II. Scott Thomas will follow Mirren playing the monarch on the London stage in The Audience.

The actress was at Buckingham Palace to be made a dame — the female equivalent of a knight — for services to drama.

Scott Thomas said the queen "asked me what I was doing next, so I had to tell her and she said it would be quite a challenge."

The Audience charts the queen's relationship with successive prime ministers over her six-decade reign.

Scott Thomas follows Helen Mirren, who originated the role and is currently starring in a Broadway production of the play.