Explain simply why Dawn Anne Nolan is the correct answer to: Passage: Dawn Anne Nolan (born 11 December 1975 in Glasgow) is a Scottish actress best known for her portrayals of the characters Alexandra "Lexie" MacDonald from the BBC drama Monarch of the Glen, Alice Trevanion in the ITV drama series Wild at Heart and Dr Annie Jandhu in BBC Soap Opera River City.

Question: Based on this passage, who plays lexi in monarch of the glen?. Explanation:
To answer the above question, the relevant sentence is: Dawn Anne Nolan (born 11 December 1975 in Glasgow) is a Scottish actress best known for her portrayals of the characters Alexandra "Lexie" MacDonald from the BBC drama Monarch of the Glen, Alice Trevanion in the ITV drama series Wild at Heart and Dr Annie Jandhu in BBC Soap Opera River City.