(1996) She acted in Shelagh Stephenson's play, "The Memory of Water," at the Hampstead Theatre in London, England with Haydn Gwynne, Mary Jo Randle, Jane Booker, Alexander Hanson, and Dermot Crowley in the cast. Terry Johnson was director.
(2008) Matilda also appeared in John Finnemore's BBC radio series "Cabin Pressure"; first in the episode "Boston" as a medical attendant and later in a larger role as Princess Theresa of Lichtenstein in the episode "Vaduz" (2013) This latter character proved so popular that she was brought back for the two-part episode "Zurich" which marked the final episode of Cabin Pressure.