Kelly Sheridan. Actress: Barbie in Der Nußknacker. Kelly Sheridan is a Canadian voice actress from Ottawa, Ontario. Her best known voice role was portraying the protagonist Barbie/ Barbara Millicent Roberts in a series of animated feature films. She portrayed the character from 2001 to 2010, and again from 2012 to 2015. Sheridan was born in Ottawa, but later moved with her family to Vancouver. She studied acting at the Vancouver Youth...