Cedric and Millicent Carson
From superman.nu: Supermanica
Cedric and Millicent Carson
A husband-and-wife team of "scheming actors" who impersonate Jonathan and Martha Kent as part of an elaborate and ultimately successful scheme to trick Superman into betraying the secret of his dual identity, and who then demand $5,000,000 in blackmail from the Man of Steel as their price for keeping his closely guarded secret from the underworld. Through a complex ruse of his own, however, Superman ultimately thwarts the extortion scheme by using his command of "super-hypnotic forces" to erase all knowledge of his secret identity from the villainous actors' minds (Act No. 247, Dec 1958: 'Superman’s Lost Parents!'). (TGSB)