||Fantastic Four [Mr. Fantastic; Human Torch [Johnny Storm]; the Thing; Invisible Girl]; the Mad Thinker; the Mad Thinker's android; Crystal; Dr. Santini
||The FF defeat the Thinker but they are then attacked by the still brainwashed Ben and the Thinker's android.
||Kirby co-plot credit was acknowledged by Lee and Kirby in several interviews. The credit here read "It's time for another standing ovation for Stan Lee and Jack Kirby."
||in Marvel's Greatest Comics (Marvel, 1969 series) #53; in Fantastici Quattro, I (Editoriale Corno, 1971 series) #68