This article is about a/an ranger in Chikyuu Sentai Fiveman.
"Ken... FiveBlue!"
―FiveBlue's roll call[src]

Ken Hoshikawa (星川 健 Hoshikawa Ken) is FiveBlue (ファイブブルー Faibu Buru) of the Fivemen and the second-in-command to FiveRed.

Character History



Ken at age 5

The second born. A 25 year old (46 in Gokaiger) physical education teacher skilled in judo. The sub-leader of Fiveman. He is extremely passionate in everything he does, relies more in the body combat than in weapons. Even taught one of his students the meaning of courage by defeating a foe without transforming.

Super Sentai World

Fiveman (Super Sentai World)

The Fivemen in Super Sentai World.

Later, Ken, alongside his team, joined forces with the Jetmen, Zyurangers, Dairangers, and Kakurangers to defeat the evil Emperor Daidas and his forces. Super Sentai World

Gaoranger vs. Super Sentai

FiveBlue is among the Sentai warriors seen in clips when Gouki (GingaBlue) lectured Soutarou Ushigome (GaoBlack) about the past Sentai strong warriors, humbly claiming to not be nearly as strong as they are. Hyakujuu Sentai Gaoranger vs. Super Sentai


Legend War

Years later, Ken fought alongside not only his own team, but every single Sentai ranger in existence, against the Empire of Zangyack when it attacked the Earth in the Great Legend War. After fighting against hundreds of Gormin and their Zgormin commanders. Kaijou noticed the fleet moving towards them, he gathered all the Rangers together and gave them the order to sacrifice their powers to wipe out the first invasion's armada. The FiveBlue powers are later used by Joe Gibken via the Ranger Keys. Ep. 1: The Space Pirates Appear Gokaiger Goseiger Super Sentai 199 Hero Great Battle

Farewell Space Pirates

After the defeat of Ackdos Gill, the Gokaiger returned all the Ranger Keys to the former Sentai heroes. It is assumed Ken received his key alongside his younger sister Remi, allowing for them to utilize their abilities once again. Final Ep.: Farewell Space Pirates

Super Hero Taisen

Dimensional wall - Liveman, Goggle V, Maskman, Jetman, Fiveman

The Fivemen, alongside the Livemen, Goggle V, Maskmen, and Jetmen, emerge through a dimensional wall.

Ken, alongside his team, among the majority of the Super Sentai heroes, was caught up in the "Super Hero Taisen" incident which eventually resulted in the Super Sentai teams and Kamen Riders joining forces to defeat both Dai-Zangyack and Dai-Shocker. During the final battle, he is seen fighting Hades God Sleipnir. Kamen Rider × Super Sentai: Super Hero Taisen

Zyuohger vs. Ninninger

All 40 Super Sentais

The first 38 Sentai projected into Wild Tousai Shuriken King.

FiveBlue appeared with his team among the first 38 Super Sentai whom collectively empowered Wild Tousai Shuriken King in its fight against the titanic Gillmarda, granting the Ninningers and Zyuohgers the power to perform the Zyuoh Ninnin Super Sentai Burst which destroyed Gillmarda with the combined power of all 40 Super Sentai. Doubutsu Sentai Zyuohger vs. Ninninger: Message from the Future from Super Sentai

Space Squad

Fiveman in Space Squad

The Fivemen were candidates to join the Space SquadIcon-crosswiki, a combined force of Sentai and Metal Heroes assembled by the Galactic Union PoliceIcon-crosswiki under Geki Jumonji to combat the GenmakuuIcon-crosswiki crime cult. Uchuu Keiji Gavan vs. Tokusou Sentai Dekaranger

Super Sentai Strongest Battle

Ken joined the Super Sentai Strongest Battle as a member of Sports Team. It’s unknown whether he participated in any of the matches, but his team lost the competition either in the first round against the Animal Lover Team offscreen or won against them and lost in the second round against Leader Team offscreen.

Video game appearances

Super Sentai Battle: Dice-O

  • FiveBlue (Dice-O)

    FiveBlue as depicted in Super Sentai Battle: Dice-O.

Ken Hoshikawa/FiveBlue: to be added

Super Sentai Battle Base

FiveBlue is among the vast pantheon of Rangers which are available in the mobile game Super Sentai Battle Base.

Super Sentai Legend Wars

Chikyuu Sentai Fiveman in Super Sentai Legacy Wars

Fiveman as seen in Super Sentai Legend Wars.

FiveBlue appears with his team among all Sentai in the mobile game Super Sentai Legend Wars.


to be added






Special Attacks

  • Rolling Array: Five Blue spins, swinging his Twin Array into an opponent multiple times before thrust-bashing them with it.



When his elder brother Gaku was in training to fight against Captain Garoa, Ken briefly wore a FiveRed costume over his FiveBlue costume in order to face against the impatient general seeking a final showdown. Garoa sliced the FiveRed helmet off him after Gaku arrived for the true showdown. Ep. 15: There Are Two Reds!!


FiveBlue Five Tector

FiveBlue with Five Tector armor


Appearances: Fiveman Episodes 37, 38, 45

Ranger Key

FiveBlue Ranger Key

The FiveBlue Ranger Key.

The FiveBlue Ranger Key (ファイブブルーレンジャーキー Faibu Burū Renjā Kī) is Ken Hoshikawa's personal Ranger Key and what became of his powers after he along with the rest of the 34 Super Sentai sacrificed their powers to end the Great Legend War.

This key along with the majority of the Ranger Keys were collected by the Red Pirates and later used by the Gokaigers. The FiveBlue Ranger Key was mainly used by Joe Gibken (Gokai Blue), who used it to fight as FiveBlue.

The Fiveman keys, along with all the Ranger Keys of the first 33 Super Sentai, were briefly taken by the Black Cross King and turned into Ranger puppets that were fought by the Gokaigers and the Goseigers. The Fiveman keys were defeated by Super Gosei Yellow. Gokaiger Goseiger Super Sentai 199 Hero Great Battle

After Zangyack were finally defeated, the Gokaigers gave the Ranger Keys back to their rightful owners. Ken received his key and became FiveBlue once more. Final Ep.: Farewell Space Pirates


Monomenian Ginga Blue of the Galaxy Sentai Gingaman disguised as FiveBlue when his team posed as Fiveman.

Behind the scenes


Ken Hoshikawa is portrayed by Kei Sindachiya (信達谷 圭 Shindachiya Kei). As a child, he is portrayed by Kentaro Tamiya (田宮賢太朗 Tamiya Kentarō). As FiveBlue, his suit actor was Hirofumi Ishigaki (石垣 広文 Ishigaki Hirofumi).


  • Although the character of Ken is the older brother to Fumiya (FiveBlack), his actor, Kei Sindachiya, is actually three years younger than Fumiya's actor Ryouhei Kobayashi.
  • His given name can be translated into "health/strength".
  • The symbol on Five Blue's helmet is shaped like a running man, which symbolizes Ken's occupation as a physical education teacher.
  • In the RPN-9 version, he is renamed as Ben.
  • In the TV5 version, he is voiced by Bobby Cruz.
  • In the opening sequence in the Philippine Dub, the English translation of his actor Kei Shindachiya is mistaken as Ken Shindachiya revealing his acting role in the series as Ken Hoshikawa.


See Also

External links

Blue Rangers
Main Series

Secondary Rangers
NinjamanGunmazinSignalmanIsshuuRamirezYuko FukuiKotaro Sakuma
EAGLE agentDummy Dia JackDeathdark BlueGinga BlueShadow Blue SwallowGolem
Previous TenmaRangerCopy TenmaRangerShoji's grandsonFlower Ninja AyameZokuBlueNeziBlue
Copy TimeBlueCopyBlueShade GaoBlueWendinuFake HurricaneBlueFake KuwagaRaiger
AyameganezumiEvil MagiBlueVrilEvil Bouken BlueKarthRyuzaburoRyujiDDai-kun

Power Sets
Main Series
AorengerDia JackBattle FranceDenziBlueVulSharkGoggleBlueDynaBlueBlue3ChangePegasus
Blue FlashBlue MaskBlue DolphinBlue TurboFiveBlueBlue SwallowTriceraRangerTenmaRangerNinjaBlue
OhBlueBlue RacerMegaBlueGingaBlueGoBlueTimeBlueGaoBlueHurricaneBlueKuwagaRaigerAbareBlue
DekaBlueMagiBlueBouken BlueGekiBlueGo-On BlueShinken BlueGosei BlueGokai BlueBlue Buster
Blue GorillaKyoryu BlueKyoryu CyanDeathryugerKyoryu NavyToQ 2gouAoNingerZyuoh Shark
Ookami BlueKoguma/Ooguma SkyblueLupinBlueRyusoulBlue
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