Martha Wentworth was an American actress. Her vocal variety led to her being called the "actress of 100 voices". She worked as a voice artist for Walt Disney Productions, Warner Bros. Pictures, and Metro-Goldwyn-Mayer Studios.
She lent her voice to Jenny Wren for the Silly Symphonies Who Killed Cock Robin? (1935) and Toby Tortoise Returns (1936). She also played characters from Disney's animated features of the 1960s, performing the voices of Nanny, Queenie the Cow and Lucy the Goose in One Hundred and One Dalmatians (1961) and Madam Mim and Granny Squirrel in The Sword in the Stone (1963), her final credited film appearance.