|This article is about a/an Dopant in Kamen Rider W.|
Sachio Sawada (沢田 さちお Sawada Sachio) is the Liar Gaia Memory user.
He is a street calligrapher and poet who uses the Liar Memory to become the Liar Dopant (ライアー・ドーパント Raiā Dōpanto), referred to in urban legends as the Radio Tower Clown (電波塔の道化師 Denpatō no Dōkeshi). Though he is paid by Yukiho Sumida to help Jimmy win the Fuuuuuutic Idol (フーティックアイドル Fūtikku Aidoru) competition, he turns on her after she fails to pay him his ideal amount, revealing the ruse in front of Jimmy. Once his cover is blown, and his being a fan of Wakana Sonozaki's radio show used against him, the Liar Dopant is defeated through the combined powers of Kamen Riders Double and Accel, with Double dealing the final blow using CycloneJoker's Joker Extreme.
- Main article: Liar Dopant
- ―Transformation announcement[src]
- Height: 229cm
- Weight: 130kg
In his dopant form, he can spit needles and is armed with the Lie Speaks (ライスピークス Rai Supīkusu), a staff with a large speaker in a shape of a giant mouth that can shoot energy blasts, the Liar Dopant's signature move is converting any lie he says into his Lie Needles (ライニードル Rai Nīdoru), forcing whoever it hits to fall under the Dopant's deception.
In the music video for "Love♡Wars", the Liar Dopant makes a cameo as he fights the Kamen Riders.