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- "Hi! Double's left half."
- ―Reika greeting to Shotaro[src]
Reika Hanehara (羽原 レイカ, Hanehara Reika) was a member of NEVER who transformed into the Heat Dopant (ヒート・ドーパント, Hīto Dōpanto).
History[]

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.
Appearances in other media[]
Futo Tantei[]

Reika with her fellow NEVER members as seen in Futo Tantei
Reika and her fellow NEVER members appears in Futo Tantei Chapter 77 Flashback.
Video Game appearances[]
Kamen Rider Riderbout[]

Heat Dopant as seen in Kamen Rider Riderbout
Heat Dopant appears as an of the many Bosses, with the other Heisei and Showa Kamen Riders in Kamen Rider Riderbout.
Abilities[]
Being a highly-trained mercenary with Necro-Over enhancements, Reika is an extremely deadly warrior, capable of several superhuman feats. Evidently, Reika's combat skills are enough to match several soldiers in battle, with Shotaro himself only barely able to defend against her in a fight. Likewise, Reika is very skilled as a motorcyclist, matching Double in a drag race.
Dopant Form[]

Heat Dopant
- Main article: Heat Dopant
- "Heat!"
- ―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.
Equipment[]
Devices[]
- Gaia Memories - Transformation trinket
Behind the scenes[]
Portrayal[]
Reika Hanehara is portrayed by Minase Yashiro (八代 みなせ, Yashiro Minase), who later portrays Kaori Kinoshita in Kamen Rider Zi-O. 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).
Concept Art[]

Heat Dopant concept art
Heat Dopant concept art was designed by Katsuya Terada (寺田 克也, Terada Katsuya).
Notes[]
- 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.
Appearances[]
Kamen Rider W
Imagin Anime
- Episode 24: Imagin in Wonderland (Image)
Kamen Rider × Kamen Rider Fourze & OOO: Movie War Mega Max (archive footage only)
- Movie War Mega Max: Gather! Warriors of Glory
Kamen Rider Heisei Generations Forever (Image)