Rosie Cavaliero

 (born 27 November 1967 ) played Cassie Schofield — the mother of Thomas Hector "Hex" Schofield — in the Big Finish Doctor Who audio stories Project: Twilight and Project: Lazarus. She also played Marge Ellmore in Infamy of the Zaross.

Career
Though she worked in the 1990s, her career significantly expanded in the 21st century. After 1999, she began landing recurring roles in British television, typically in situation comedies. Amongst the television series on which she's been a regular are with Paul O'Grady, Margaret John and Sheridan Smith;  with Michelle Gomez;  with Ruth Jones; the Adam Smith-directed  with Bill Paterson, Freema Agyeman, Arthur Darvill, Eve Myles, Ron Cook, Ruth Jones and Russell Tovey; and  with Tom Goodman-Hill and Rebekah Staton.

She also had guest shots in high-profile British comedies including, and French and Saunders.