Martha Mouse

Hammy's best friend and is a protagonist. She is a well known character.

Personality
She is cautious, resourceful and owns a small motorboat.

Home
She lives in a boot with Hammy.

Trivia
She is mostly known as  Roderick the Water Rat. In the Canadian and U.S. versions of the series, this character was Matty or Martha Mouse (although the "mouse" is really a rat). In Australia, the character was known as Matthew.

Episodes she appears in
Tales Of The Riverbank- GP's Medicine (As Roderick),