Each member of the Impossibles had a specific, and very visual superpower:
- Coil-Man (voiced by Hal Smith) - Short, barrel-chested and sporting a mod haircut, blond “Coily” could transform his arms and legs into impossibly stretchable or coiled springs, allowing him to bounce to avoid attacks, deliver long-range punches, or drill through walls. Coil-Man usually drove the Impossi-jet, and his guitar contained a small TV receiver through which “Big D” (voiced by Paul Frees, who also served as the voice over Narrator in almost every episode) could contact the group and deliver orders (Big D used Multi Man’s guitar in “The Fiendish Dr Futuro,” “Beamatron,” and “The Diabolical Dauber”). Because of his presumably metal coils, Coily could be held in place by a super magnet, but could also conduct heat or electricity with his coils. He also hid in a closet disguised as a wire coat hanger, further implying that he was at least partially made of metal. Coil-Man’s costume was purple and blue and included a purple mask and acowl crested by a triangular fin.
- Fluid-Man (voiced by Paul Frees) - Dark-haired Fluid-Man, aka “Fluey”, could morph parts of his body into a liquid form, a talent perfect for sneaking up on an enemy though a water faucet. He could also vaporize himself into a cloud or storm, but he could also be soaked up and trapped by a sponge (“Televisatron” and “Return of the Spinner”), or frozen solid inside a block of ice (“Not So Nice Mr. Ice”). Fluid-Man’s costume resembled a lime green wetsuit complete with diver’s mask and swimfins. Fluey’s speaking style indicated that he was the beatnik of the group.
- Multi-Man (voiced by Don Messick) - Multi could create infinite duplicates of himself which were often destroyed, leaving only the original behind. His duplicates rarely, if ever, functioned independently, and were often used as camouflage, a bluff, for extra strength or transportation (he could fly by continuously creating replicas above himself). When duplicating himself, he could push tons of rocks out of the way or crack the block of solid concrete he and the others were entombed in. The character had shaggy, orange hair and he usually held a shield emblazoned with a capital ‘M’ for what seems decorative reasons, though he has used it at least twice. In one instance, Multi repelled bullets with his bare hand (“Fero, the Fiendish Fiddler”), however it may be the shield was supposed to have been used but was accidentally left undrawn. Multi-Man’s angular, red and black costume resembled an oversized, stylized ‘M’, and included a short, triangular redcape. A physical trait that he shared with many of his contemporaries in cartoons and comics of the mid-Sixties was a mop of hair that entirely covered his eyes. Favorite saying: “You got them all except the original.” Multi bore a resemblance to the four identical members of the singing group “The Way Outs” from “The Flintstones.”