World War Scooby Doo (1971)

After solving a mystery, the gang accidently got sent back into World War II, and Daphne and Velma are kidnapped for flashed-tranformed into soldiers (Daphne with button on her back, to control a robotic man, and Velma as an informant), and Scooby, Shaggy and Fred have to save the girls and stop the mastermind behind this.

Premiered
1971

Characters

 * Scooby-Doo (Don Messick)
 * Shaggy Rogers (Casey Kasam)
 * Fred Jones (Frank Welker)
 * Daphne Blake (Heather North)
 * Velma Dinkley (Nicole Jaffe)
 * ??? (???) - the main antagonist, flash-transformed Daphne and Velma into soldiers
 * Soldiers

Plot
???