SGT. Frank Rock, a fictional NCO during World War II in the DC COMICS UNIVERSE, made his first comic appearance in 1959.
REMCO produced a line of 3 3/4 inch action figures, playsets and vehicles in the 1980s.

SGT. Rock toys. US. The Warlord. 1983.

SGT. Rock toys. US. Legion of Superheroes. 1983.

SGT. Rock toys. US. Legion of Superheroes. 1983.

SGT. Rock toys. USA. DC Amethyst 9. 1984.