A hero created by
Robert Kanigher and
Alex Toth (who later
went on to create
Space Ghost) for
DC Comics. Rex first
appeared in
The Adventures of Rex the Wonder Dog #1 in January 1952.
Rex is a white German shepherd and a vetern of the U.S. Army's K-9 Corps, where he served
his country for many years. He later was taken back home to
live with the Dennis family. Rex used his intelligence to
help prove one of the Dennis boys, Phillip, was not guilty
of murder.
For many years after that, Rex and Phillip's brother, Danny
had numerous adventures. During that time, Rex did everything
from riding a horse to swinging from a vine by holding it
in his teeth. Rex even had a few adventures at a microscopic
scale with the help of his scientist friend, John Rayburn.
Eventually, Rex found himself getting on in years and would
have retired from adventuring all together, except for an outing
in Florida with Bobo the Detective Chimp. During their adventure,
the two stumbled upon the legendary Fountain of Youth and drank
from it. Instantly, the two animals were returned to their
prime of life and have continued in their individual pursuits.
Rex has in recent years aided the Flash in defeating the
villain Gorilla Grodd, teamed up with Superboy and a group
of super-powered heroes known as the Ravers and become associated
with a government agency known as the Bureau of Amplified Animals.