Tsuyoshi Ageo is the user of the Violence Gaia Memory to become the Violence Dopant and an antagonist in Kamen Rider W.
He is Wakana Sonozaki's manager an a weak willed man who loves her in spite of her abuse towards him. He is later used by Wind Wave DJ Motoko Saeki in a scheme to force Wakana off the air, after she buys the Violence Memory and gives it to him. After falling under the Memory's influence, Ageo assumes the alias of Mister Question and begins targeting certain places of value to Wakana while stalking her. Once discovered, he abducts Wakana and is chased after by Kamen Rider Double. Before being defeated by means of LunaTrigger's Trigger Stag Burst Maximum Drive, he leads Wakana to Motoko.
- Height = 230 cm
- Weight = 420 kg
As the brutish Violence Dopant, his left arm is strong enough to destroy anything in its path, even enough to smash through cars. He can compress his body into a wrecking ball-like form called the Violence Ball to cause more collateral damage.