Margaret Wright was an American actress who did the voice of Casey Junior (while using a device called a sonovox) from the film Dumbo and Who Framed Roger Rabbit. After she died from heart failure (aged 82), Cathy Cavadini took her place as the voice of Casey Jr. in all other films with Casey Jr. in them.

Margaret Wright appeared on Disneyland and The Life and Times of Rosie the Riveter, and she starred in I'll Be Home for Christmas as Mary Jenkins in 1997.