Amnesio

Amnesio, A.K.A. Experiment 303, is an illegal genetic experiment created by Jumba Jookiba. He is designed to wipe the memories of anyone he zaps in the eyes with the rays from his own. He was captured by Gantu, but was rescued in "Snafu". Amnesio is voiced by Tress MacNeille.

Bio
Experiment 303 was the 303rd genetic experiment created by Jumba with Hämsterviel's funding. He was designed to wipe his victims' memories.

303 and the other first 624 experiments were deactivated and smuggled to Earth by Jumba during his mission to capture Experiment 626.

All of the experiment pods were released and scattered across the island of Kauai.

Lilo & Stitch: The Series
TBA

Leroy & Stitch
The first 624 experiments, including Amnesio, were round up by Leroy and taken to a stadium to be destroyed. However, Lilo, Stitch, Jumba, Pleakley, Reuben and Gantu arrived before the experiments could be destroyed.

Amnesio participated in the following battle between the experiments and the Leroy clones by erasing Leroys' memories.

However, the Leroys soon gained the upper hand in the battle, but were defeated when Lilo, Stitch, Reuben and several other experiments performed the song Aloha Oe, which caused the Leroy army to shut down due to the original Leroy's failsafe.