Matilda "Mattie" Colleen Ashby is a fictional character on The Young and the Restless, portrayed by McKenna Roberts 2013-2017, and Lexie Stevenson in 2017.
Matilda "Mattie" Colleen Ashby is a fictional character on The Young and the Restless, portrayed by McKenna Roberts 2013-2017, and Lexie Stevenson in 2017.