Diễn viên Kamen Rider W

Hidari Shōtarō (左翔太郎, Hidari Shōtarō?): Kiriyama Ren (桐山漣, Kiriyama Ren ?)
Philip (フィリップ, Firippu?): Suda Masaki (菅田将暉, Suda Masaki ?)[4]
Narumi Akiko (鳴海亜樹子, Narumi Akiko?): Yamamoto Hikaru (山本ひかる, Yamamoto Hikaru ?)
Terui Ryū (照井竜, Terui Ryū?): Kinomoto Minehiro (木ノ本嶺浩, Kinomoto Minehiro ?)
Jinno Mikio (刃野幹夫, Jinno Mikio?): Nadagi Takeshi (なだぎ武, Nadagi Takeshi ?)
Makura Shun (真倉俊, Makura Shun?): Nakagawa Shingo (中川真吾, Nakagawa Shingo ?)
Watcherman (ウォッチャマン, Wotchaman?): Nasubi (なすび, Nasubi ?)
Santa-chan (サンタちゃん, Santa-chan?): Fukkin Zennosuke (腹筋善之介, Fukkin Zennosuke ?)
Queen (クイーン, Kuīn?): Itano Tomomi (板野友美, Itano Tomomi ? AKB48)
Elizabeth (エリザベス, Erizabesu?): Kasai Tomomi (河西智美, Kasai Tomomi ? AKB48)
Sonozaki Ryūbee (園咲琉兵衛, Sonozaki Ryūbee?): Terada Minori (寺田農, Terada Minori ?)
Sonozaki Saeko (園咲冴子, Sonozaki Saeko?): Namai Ami (生井亜実, Namai Ami ?)
Sonozaki Wakana (園咲若菜, Sonozaki Wakana?): Asuka Rin (飛鳥凛, Asuka Rin ?)
Sonozaki/Sudō Kirihiko (園咲/須藤霧彦, Sonozaki/Sudō Kirihiko?): Kimisawa Yūki (君沢ユウキ, Kimisawa Yūki ?)
Isaka Shinkurō (井坂深紅郎, Isaka Shinkurō?): Dan Tomoyuki (檀臣幸, Dan Tomoyuki ?)
Kazu Jun (加頭順, Kazu Jun?): Gong Teyu (コン・テユ, Kon Teyu?)[5]
Smilodon Dopant (スミロドン・ドーパント, Sumirodon Dōpanto?, Lồng tiếng): Takato Yasuhiro (高戸靖広, Takato Yasuhiro ?)
Shroud (シュラウド, Shuraudo?, Lồng tiếng): Naoko Kouda (幸田直子, Kōda Naoko?)
Narration, Gaia Memory (ナレーション、ガイアメモリ, Narēshon, Gaia Memori?, Lồng tiếng): Tachiki Fumihiko (立木文彦, Tachiki Fumihiko ?)

Diễn viên khách mời

Tsumura Marina (津村真里奈, Tsumura Marina? 1-2): Yamanouchi Meibi (山内明日, Yamanouchi Meibi ?)
Kaga Taizō (加賀泰造, Kaga Taizō?, 3-4): Gashūin Tatsuya (我修院達也, Gashūin Tatsuya ?)
Hoshino Chizuru (星野千鶴, Hoshino Chizuru? 7-8): Fujii Reina (藤井玲奈, Fujii Reina ?)
Ikari (伊刈, Ikari? 7-8): Katagiri Jin (片桐仁, Katagiri Jin ?)
Giáo viên (教師, Kyōshi?, 7-8): Watari Hiroshi (渡洋史, Watari Hiroshi ?)
Asakawa Mai (浅川麻衣, Asakawa Mai? 9-10, 14): Otoguro Eri (乙黒えり, Otoguro Eri ?)
Kurosu (黒須, Kurosu? 11-12): KOJI
Cô gái trẻ (若い女性, Wakai Josei?, 12): Kajiwara Hikari (梶原ひかり, Kajiwara Hikari ?)
Saeki Motoko (佐伯素子, Saeki Motoko? 13-14): Nakamaru Shion (中丸シオン, Nakamaru Shion ?)
Kurata Kenji (倉田剣児, Kurata Kenji? 15-16): Nishi Kōichirō (西興一朗, Nishi Kōichirō ?)
Katahira Makiko (片平真紀子, Katahira Makiko? 19-20): Ōsawa Itsumi (大沢逸美, Ōsawa Itsumi ?)
Katahira Kiyoshi (片平清, Katahira Kiyoshi? 19-20): Shibuya Kento (渋谷謙人, Shibuya Kento ?)
Kujō Aya (九条綾, Kujō Aya? 21-22): Kinoshita Ayumi (木下あゆ美, Kinoshita Ayumi ?)
Akutsu Ken (阿久津憲, Akutsu Ken? 21): Ōtaka Hiroo (大高洋夫, Ōtaka Hiroo ?)
Himuro (氷室, 21?): Muraoka Hiroyuki (村岡弘之, Muraoka Hiroyuki ?)
Quỷ giáo quan (鬼教官, Oni Kyōkan?, 21): Tominaga Kenji (富永研司, Tominaga Kenji ?)
Người đàn ông thuộc tổ chức phân phối Gaia Memory (ガイアメモリ流通組織の男, Gaia Memori Ryūtsū Soshiki no Otoko?, 21): Kaneda Shin'ichi (金田進一, Kaneda Shin'ichi ?), Eitoku (永徳, Eitoku ?)
Kamiki Aya (上木彩矢, Kamiki Aya?, 23-24)
TAKUYA (23-24)
Ōnuki Ichirōta (大貫一朗太, Ōnuki Ichirōta?, 23-24): Mizuki Ichirō (水木一郎, Mizuki Ichirō ?)
Lily Shirogane (リリィ白銀, Riryi Shirogane?, 27-28): Nagasawa Nao (長澤奈央, Nagasawa Nao ?)
Yukimura Himeka (雪村姫香, Yukimura Himeka?, 29-30): Asō Natsuko (麻生夏子, Asō Natsuko ?)
Kyūzō of the Turret (櫓の久蔵, Yagura no Kyūzō?, 29): Fukumoto Seizō (福本清三, Fukumoto Seizō ?)
Sudō Yukie (須藤雪絵, Sudō Yukie?, 33-34): Hirata Kaoru (平田薫, Hirata Kaoru ?)
Shimamoto Nagi (島本凪, Shimamoto Nagi? 35-36): Wagawa Miyū (和川未優, Wagawa Miyū ?)
Nijimura Ai (虹村あい, Nijimura Ai? 39-40): Yazawa Erika (谷澤恵里香, Yazawa Erika ?)
Kawai Tōru (川相透, Kawai Tōru? 39-40): Kawano Naoki (川野直輝, Kawano Naoki ?)
Todoroki Kyōko (轟響子, Todoroki Kyōko? 45-46): Hirata Yuka (平田裕香, Hirata Yuka ?)[6]
Neon Ulsland (ネオン・ウルスランド, Neon Urusurando?, 47-48): Maria Theresa Gow (マリア・テレサ・ガウ, Maria Teresa Gau?)[7]

Diễn viên phục trang

Kamen Rider Double: Takaiwa Seiji (高岩成二, Takaiwa Seiji ?), Itō Makoto (伊藤慎, Itō Makoto ?)
Kamen Rider Accel: Eitoku (永徳, Eitoku ?)
Terror Dopant: Yokota Ryō (横田遼, Yokota Ryō ?)
Taboo Dopant, Shroud: Ono Yūki (小野友紀, Ono Yūki ?)
ClayDoll Dopant, ClayDoll Xtreme, Dopant khác: Fujita Satoshi (藤田慧, Fujita Satoshi ?)
Nasca Dopant, Weather Dopant, R Nasca Dopant, Dopant khác: Watanabe Jun (渡辺淳, Watanabe Jun ?)
Smilodon Dopant, Utopia Dopant, Dopant khác: Fujii Yūgo (藤井祐伍, Fujii Yūgo ?)