This article is about a/an villain in Kamen Rider W.
"Hi! Double's left half."
―Reika greeting to Shotaro[src]

Reika Hanehara (羽原 レイカ Hanehara Reika) is the only female member of NEVER. In Kamen Rider W Forever: A to Z/The Gaia Memories of Fate, she becomes the Heat Dopant (ヒート・ドーパント Hīto Dōpanto).

Reika Hanehara

Reika Hanehara death

Mortally wounded, Reika Hanehara dies for the first time.

She was formerly a serial criminal who was gunned down while attempting to escape from Alcatraz Prison to avoid the death penalty. She is turned into the newest of the Necro-Overs in the group. Coming to grips with her new existence, Reika hates the cold feeling of her undead body. Captured by Doctor Prospect's men, she helps Katsumi Daido in saving the Quarks before she is horrified to see the change in his personality after their deaths. However, regardless of the complete change, Reika believed there was some good left in Daido. Following Daido to Futo, she uses the T2 Heat Memory to transform into the Heat Dopant with control over fire. She fights against Kamen Rider Joker but is defeated by his Rider Kick Maximum Drive. She manages to reach Futo Tower before starting to disintegrate, begging Daido for aid. However, she's rebuffed and has only enough time to curse Daido for his cold heartedness before vanishing in Shotaro's arms.


Can emit flames from her body and has a high body temprature.

Dopant Form

Heat Dopant with Bike

Heat Dopant with her bike

Main article: Heat Dopant
―Transformation announcement[src]
  • Height: 178
  • Weight: 80

She used the T2 Heat Memory to transform. As the Heat Dopant, Reika gained the ability to use the element of fire. She also has her own bike to escape from Double.

Behind the scenes


Reika Hanehara is portrayed by Minase Yashiro (八代 みなせ Yashiro Minase).[1] She previously portrayed Ami Hyuga, the lead in The Machine Girl. As the Heat Dopant, her suit actor is Sanae Hitomi (人見 早苗 Hitomi Sanae).


  • In real life, Reika couldn't have escaped from Alcatraz, due to the prison being closed since 1963, which was 8 years before the airing of the first episode of Kamen Rider.