Appearance and Personality
Walkin is a muscular guy with dark gray single ponytail hair. He doesn't wear any clothes, only pants, half naked.
He was seen covered inside an transparent barrier which later explained as invisible mode as a special feature of Observer White-X. He intended to attack Twenty-Fifth Baam who guarded the location. Although he was invisible, Baam's body can quickly dodge the stealth attack and counter it with heavy punch.
Powers and Abilities
He fought with knifes to injure his enemies, although he was still no match for Baam.