In the strictest sense, an alien is any being or animal that is foreign to your own homeworld, either from another planet, or dimension.
Known Alien Races in the SuperFriends Universe:
“Earth-Two dimension (and Earth-2A) Kryptonians' bodies had advanced to the point were they are...Kryptonian (Earth-2A)
“The Herculoids are an alien race. They are the aliens that built the Herculoid Automaton. It's...Herculoids
Pages in category "Alien Races"
The following 93 pages are in this category, out of 93 total.