Sandy Duncan

Sandy Duncan is an American comic actress who voiced herself twice in the world of Scooby-Doo.

20th century

 * The New Scooby-Doo Movies
 * Herself ("Sandy Duncan's Jekyll and Hyde", 1972)

21st century

 * Scooby-Doo and Guess Who?
 * Herself ("The Dreaded Remake of Jekyll & Hyde!", 2020)