Christina Lange and Don Messick in A Pup Named Scooby-Doo (1988)

Casey Kasem and Don Messick in A Pup Named Scooby-Doo (1988)

Kellie Martin in A Pup Named Scooby-Doo (1988)

Casey Kasem, Don Messick, and Carl Steven in A Pup Named Scooby-Doo (1988)

Kellie Martin, Casey Kasem, and Don Messick in A Pup Named Scooby-Doo (1988)

Casey Kasem, Don Messick, and Vernee Watson in A Pup Named Scooby-Doo (1988)

Charlie Adler, Casey Kasem, and Don Messick in A Pup Named Scooby-Doo (1988)

Vernee Watson in A Pup Named Scooby-Doo (1988)

Kellie Martin, Christina Lange, and Carl Steven in A Pup Named Scooby-Doo (1988)

Carl Steven in A Pup Named Scooby-Doo (1988)