|This article is about a/an Dopant in Kamen Rider W.|
When Akane Egusa runs away from home, her friend Touma is the first to test the true powers of the Bird Memory out and decides to use it for fun with Yayoi and Yuichi until Touma decides to use it to attack people as the Bird Dopant (バード・ドーパント Bādo Dōpanto). They are stopped by Kamen Rider Double, and the two boys are taken into the hospital after suffering from some of the negative side effects of using a Gaia Memory without a Living Connector.
- Main article: Bird Dopant
- Height: 278 cm
- Weight: 119 kg