Dumpa

Dumpa was originally a bullie in a school in Tapio's Original Homeland. When Inwirn changed school there, he met Dumpa and was impressed by his strength, after he had beaten up a Matoran named Maki. Inwirn asked for Dumpa's help in killing Tapio and Dumpa agreed. Together they constructed the Brainsucker Machine. But when Inwirn tried to use it on Tapio, the blast hit Dumpa instead, making him a total idiot, with absolutely no intelligence of his own. This was a bad setup for Inwirn, but Dumpa now followed her blindly, giving Inwirn a free bodyguard. They later moved to Bio-Land, after Tapio.

During Alliance of the Enemies, Dumpa didn't have a big role. But he did got fused into the Ketawnki with some other characters. When defused, Dumpa became more powerful, but was damged badly. He moved to Inwirn's Second Base with Inwirn, Juho, Nekka and five Griddlers. He formed a friendship with Juho. Juho even toom him with him after the seemingly death of Inwirn. When Inwirn however, came back, Dumpa was excited. After the War of the Clones, Dumpa escaped the Spiders of Doom with Inwirn and Lerahk but got still mutated. They escaped again and found the Mask of Reality. In Inwirns False Reality, Dumpa was a powerful bodyguard, who got defeated however. When reality was changed back to normal, Dumpa fell into a pool of lava with Inwirn, Lerahk and the Mask of Reality. All of them got destroyed... or atleast it seemed to be so.

So currently, Dumpa is deceased.