Granny Malone is Rita Malone's grandmother.
In Flushed Away
She is often crazy and is a big fan of Welsh singer Tom Jones. Liam points out, saying that there is a peeping Tom outside making Rita's grandmother shout; "Tom?! Oh!! It's Tom Jones!". Mrs. Malone responded by telling her that Roddy is not Tom Jones and Rita tells her mother that Roddy is her passenger.