These Unnamed Species are introduced in the Dexter's Laboratory Episode entitled "Spacecase".
Biology[]
They are Humanoid-like Alien Lifeforms with Squid-like Heads, Elongated Skulls, Black Ovular Eyes, and their faces appear with Lipless Mouths, No Chins, No Eyebrows and No Nostrils. They are basically Gray in appearance and wear black jumpsuits.
Description[]
In their Only appearance in the episode Spacecase, they appear in Dexter's Lab to take Dee Dee is too much for the aliens as she bounces around their spaceship pushing multiple buttons at once and being a general nuisance.
When Dexter arrived at the Aliens Spaceship to retrieve Dee Dee, they were much too relived to give her back to him.