Granutes are intelligent lifeforms that operate secretly in the human world. They kidnap people for the sake of "Black Market Sweets." As people are attacked one after another by the Granutes, Shoma, a young man from another world, rises up to save the people. Together with the Gochizo, small monsters born from eating sweets, he transforms into Kamen Rider Gavv with a mouth-like belt!
as Shoma / Kamen Rider Gavv
as Hanto Karakida / Kamen Rider Valen
as Sachika Amane
as Rakia Amarga / Kamen Rider Vram / Rage9
as Glotta Stomach
as Nyelv Stomach
as Jeebh Stomach
as Siita Stomach
as Lango Stomach
as Kenzo Suga
as Dente Stomach (voice)
as Lizel Jaldak
as Bocca Jaldak (voice)
as Agents, Gochizo (voice)
as Agents, Gochizo (voice)
as Gochizo / Agents (voice)
as Gochizo / Agents (voice)
as Kamen Rider Gavv (suit actor)
