He is a palm reader in Futo who Shroud gave the Old Memory to in a calculated plan to get rid of Shotaro. As the Old Dopant, Soma took on the name of the Ager, offering to age any person his customer hates for the right price, taking delight in his work. Although Shroud states that only the power of Kamen Rider W CycloneAccel Xtreme can defeat the Old Dopant, Accel holds the Dopant for Double CycloneJoker Xtreme to make a direct hit while in his aging state. When the Old Dopant assumes his fighting mode, Accel uses the Machine Gun Slasher to defeat the Old Dopant.
- Height: 270 cm
- Weight: 170 kg
In his Dopant form, the Ager uses Old Creak, an ooze similar to the Terror Dopant's Terror Field, to age his target. By turning around, the Old Dopant can switch from the rust-colored form he uses the Old Creak in to a patina-colored faster form that is geared towards combat.