A member of the Legion of Super Pets
Beppo was a Kryptonian monkey who stowed away aboard the
rocket that brought Kal-El from his dying planet to Earth.
How Beppo stowed away in the small rocket and why he was even
in Jor-El's lab in the first place are questions that were
never addressed. Arriving on Earth, Beppo gained super-powers like
all Kryptonians do under a yellow sun (super-strength, super-
speed, flight, invulnerability, etc.). Beppo kept his
presence on Earth unknown for many years, until Kal-El, now Clark
Kent, began being the superhero Superboy. Beppo then arrived on
the scene and began to use his super-powers to make mischief
for Boy of Steel.
Superboy eventually tricked Beppo into deep space, where it took him
years to find his way back. When he returned, he was rediscovered
Beppo was inducted into the Legion of Super Pets for aiding the
Legion of Super-Heroes.