Cascade

Cascade is a planet in Sonic X. In the Japanese version, it had no name.

It is home planet of a different group of humans that exist within Sonic's home universe, who appears to be several times more technologically advanced than even those on Sonic's planet Mobius, who are in turn more technologically advanced than the humans on Earth.

In Transformers: Universe, Cascade is a planet in the Quintesson Pan Galactic Co-Prosperity Sphere.

Sonic X
Cascade was once a beautiful planet. However, one day, the Metarex came and took the Planet Egg, causing the planet to die. A Resistance fought Pale Bay Leaf, in hope to make Cascade beautiful again. Two of the Cascade Resistance were Molly and Leon.

Later, Dr. Eggman arrived during a fight and Shadow saved Molly, causing her to believe he was the spirit of Black Wind. However, her hope vanished when Leon and several of the Resistance gave up. Molly was killed by Bay Leaf (in the Japanese version; in the English version, she is said to have left Cascade and seemingly disappeared) and Shadow, using the power of the White Chaos Emerald, got revenge by smashing Bay Leaf's ship.

After the Metarex's destruction, the Planet Egg returned to the planet making it beautiful once again. Shadow built a grave to Molly using debris and gave Rouge the Chaos Emerald, leaving to fight the Metarex alone. In the Japanese version of episode 78, Shadow was seen coming back and placing a rose on Molly's grave.

Transformers: Universe
Cascade was a beautiful planet resembles to Earth. However, one day, Thundercracker scouted the planet for energon and Megatronus and the Terrorcons came to mine energon from the planet. A Resistance fought the Terrorcons, in hope to free Cascade from danger. Two of the Cascade Resistance were Molly and Leon.

Later, Optimus Prime and the Autobots aboard the Miranda II arrived during a fight and Bumblebee saved Molly from being killed by one of the Vehicons. The Bee Team discovered four energon points on Cascade while Team Prime found Team Bulkhead, who informed about the prototype Unicron. Ultra Magnus, Perceptor, Springer, Arcee, Daniel Witwicky, Hot Rod, Kup, the Dinobots and the Junkions landed on the planet to help the installation of four Energon towers for Cascade.

When Megatronus sent the two artificial "comets" to destroy Cascade, Galvatron and the Decepticons return in order to defeat Optimus Prime and steal the Matrix of Leadership, a plan which they succeeded with before an energon grid was created to protect the planet. The Autobots allied with Molly, Leon and several of the Resistance to aid in the battle against Unicron.

The Earth Federation formed a alliance with the Cascade Resistance.