Kathy Brier (born March 10, 1975) is an American stage and television actress. She was born on Staten Island in New York.
She started playing the bit role of Marcie Walsh on the soap opera One Life to Live in 2002. Her character served little purpose other than a confidante to a villainess on the show, Jennifer Rappaport (played by Jessica Morris). However, her more zaftig appearance (she has been quoted in soap periodicals as taking a size 10 or 12 dress) resonated with viewers, who wished to see her more often. Her story was expanded, giving her a job as secretary in the Llanview Police Department. She even got a love interest, in the form of reformed bad-boy Al Holden (Nathaniel Marston). The couple's popularity quickly soared, and the two were voted Most Popular Couple in various soap magazines for months on end.
Late in 2003, she took over the role of Tracy Turnblad in the Broadway production of Hairspray; before that time, she had been an understudy to the role. She exited the role in May 2004.