Kerry is a former Hōgen subordinate.
He fled with Shingo. Together, they found Tōbē, in the river, drowning. When Shingo ran to get help from Weed's group, he stayed behind to watch Tōbē. The three survived after they all went to Weed's hideout to rest. Kerry is not seen again after this.
His role is almost the same as the manga except that Kerry was about to run off and tell Hōgen about Ōu Soldiers' whereabouts when Jerome stopped him.