Casey Kasem and Don Messick in Scooby Doo, Where Are You! (1969)

Nicole Jaffe and Casey Kasem in Scooby Doo, Where Are You! (1969)

Don Messick in Scooby Doo, Where Are You! (1969)

Stefanianna Christopherson, Nicole Jaffe, Casey Kasem, Don Messick, and Frank Welker in Scooby Doo, Where Are You! (1969)

Stefanianna Christopherson and Frank Welker in Scooby Doo, Where Are You! (1969)

Casey Kasem in Scooby Doo, Where Are You! (1969)

Stefanianna Christopherson in Scooby Doo, Where Are You! (1969)

Stefanianna Christopherson, Nicole Jaffe, and Don Messick in Scooby Doo, Where Are You! (1969)

Stefanianna Christopherson, Nicole Jaffe, and Frank Welker in Scooby Doo, Where Are You! (1969)