Leroy, AKA Experiment 629, is the deadly creation of Dr. Hamsterviel and is his master's deadliest henchman. He is a secondary antagonist in the Disney sequel, Leroy and Stitch.
Disney Vs Non Disney Villains - Part Two
Alien Vs Alien
Dr. Hamsterviel brings in Leroy to defeat Krang, an alien standing in the way of Dr. Hamsterviel's discovering important interdimensional transportation technology. Leroy grabs two blasters and takes down the heli-carrier of Krang's rock soldier guards. Though Krang shoots him with twin lasers from a bipedal walker, Leroy survives.
Disney Villains War
Disney Vs Anime Villains War
Disney Heroes Vs Villains War - Part Two
Leroy is set to appear in the second part of the war, along with many other characters.