Fourth Dimension

Planet Icarus is the homeworld of the Icarus aliens.

Planet Icarus
It is unknown what the planet actually looks like, but it may be in the 4th dimension because the aliens came to Earth from that dimension.

Inhabitants
The major inhabitants of this planet are the Alien Icarus. it is unknown if there are other aliens or monsters on the planet. The Icarus have technology to let them cross to Earth from the 4th dimension.