Dark End is an alien experiment who appeared in the Stitch! anime as an antagonist. Dark End was created by Delia using similar genetic blueprints to that of Stitch and required Stitch's power cell to complete his creation. It is because of this that Dark End does not fall into Jumba's numbering system. Delia made Dark End as a combatant in order to defeat Stitch.
Dark End is a very dark purple, rabbit-like experiment with purple claws, two gold earrings on his right ear, large ears similar to Delia, a small yellow Mohawk, white fur on his belly, hands, and around his eyes, and a pink rabbit-like nose.
Like Stitch, Dark End is able to mutate into a second form with four arms, two long antennae, and three spikes on his back. However, his eyes glow bright purple when doing so, and energy radiates off his body which can be fired off as purple energy blasts. He possesses Stitch's abilities of enhanced strength, invulnerability, and fighting skills. He also possesses other abilities, such as creating faults in the ground, flight, teleportation, and electricity. He is capable of speaking fluently.
Delia began the creation of Dark End at the start of Season 3 of the Stitch! anime and continued working on him until the second-to-last episode. After he was created, Delia then invaded Earth and sent out Dark End to defeat Stitch. Dark End easily had Stitch on the ropes, even with the help of some of the other experiments. However, Stitch eventually defeated Dark End using a hidden power he had. Afterwards, Jumba caught Dark End in a container, and the Grand Councilwoman arrested Delia, Hämsterviel, Gantu and Reuben. Dark End has not been seen since.