Space Crinals Alienizer, or simply Alienizer, is the classification given to various criminal alien species that commit various forms of crime, on Earth and on other planets. They fall under the jurisdiction of Special Police, Dekarangers.

The overall Alienizers are the main antagonists of Tokusou Sentai Dekaranger.


Most of Alienizers are independent criminals. While some Alienizers might work together towards a common goal, or be part of a particular criminal organization or family, the majority of Alienizers have been known to work independently from each other. However, the majority of them have purchased weapons and Mechanoids from an arms dealer Alienizer, called Agent Abrella, making Abrella ultimately responsible for their vile actions in the series.

As a result of this, even after Abrella's demise at the finale of the series, there are still Alienizers wreaking havoc in their criminal activities, which comfirmed Abrella's final words that the crime will never disappear.

In Kaizoku Sentai Gokaiger, Buramudo, an Alienizer, took a job for the Zangyack Empire to oversee their plot to launch subterranean missiles to destroy every city on Earth. After his plan is thwarted and he is defeated by the Gokaigers assuming the forms of the Dekarangers, an enlarged Buramudo is destroyed by Deka Gokaioh.




  • Space Criminals Alienizer is the first group of Sentai Villains that are not a united organization and has no central leader, even though Agent Abrella is responsible for their atrocities by selling them machine.
  • Alienizers are the first Heisei Sentai Monsters that does not grow gigantic themselves during their second phase of battle but pilot giant robots instead (in most of the cases). They are the second evil groups of Sentai franchise to have monsters of the week piloting a giant robot after Dark Science Empire Deathdark.
    • However, exceptions exist, but have many diverse ways to grow, rather than having one object or agent doing the growing.


           Logo-supersentai.png Villains

Shōwa Era Super Sentai Villains
Black Cross Army | Criminal Organization Crime | Secret Society Egos | Vader Clan | Machine Empire Black Magma | Dark Science Empire Deathdark | Tailed-People Clan Jashinka Empire | Neo Empire Gear | Great Star League Gozma | Reconstructive Experiment Empire Mess | Underground Empire Tube | Armed Brain Army Volt

Heisei Era Super Sentai Villains
Hundred Boma Tribes | Galactic Imperial Army Zone | Dimensional War Party Vyram | Bandora Gang | Gorma Tribe | Youkai Army Corps | Machine Empire Baranoia | Space Bosozoku Bowzock | Wicked Electric Kingdom Nezirejia | Space Pirates Balban | Psyma Family | Londerz Family | Ogre Tribe Org | Universal Ninja Group Jakanja | Invasion Garden Evolian | Space Criminals Alienizer | Underground Hades Empire Infershia | Jaryuu | Dark Shadow | Ashu Tribe (Questers) | Rinjuken Akugata | Genjuken | Banki Clan Gaiark | Gedoshu | Universal Annihilation Army Warstar | Earth Condemnation Group Yuumajuu | Machine Onslaught Empire Matrintis | Brajira of the Messiah | Space Empire Zangyack | Vaglass | Deboth Army | Evil Army Shadow Line | Kibaoni Army Corps | Izayoi Way Ninja Army Corps | Deathgalien | Space Shogunate Jark Matter | Interdimensional Crime Group Gangler | Druidon Tribe

Reiwa Era Super Sentai Villains
Dark Empire Yodonheim | Kikaitopia Dynasty Tojitendo

Other Villains
Shadow Moon | Kamen Rider Decade | King (Kiva) | Narutaki | Army of Resurrected | General Shadow | Masato Mishima | General Black | Doktor G | Teruo Suzuki

Logo-dekaranger.png Villains

Space Criminals Alienizer
Agent Abrella | Anaroids | Batsuroids | Igaroids
Minor Alienizers: Lovelian Balance | Diamantian Don Moyaida | Grorserian Hell Heaven | Rikomoian Kevakia | Anrian Beildon | Doltockian Manomerk | Ridomihan Kersus | Quotaian Dagonel | Zamuzan Sheik | Intergalactic Hitman Gigantes | Kajimerian Ben G | Cristonian Ferley | Titanian Meteus | Ozchuian Ial | Wojonian Jinche | Guermerlian Byz Goa | Dradian Goldom | Spiritian Byoi | Tylerian Durden | Bandarean Jeeva | Beesian Beeling | Barigean Milibar | Pouchien Bolapen | Speckionian Genio | Pukosian Jackil | Ginjifuan Kazak | Karakazian Don Sanoa | Botsian Zortac | Thousanian Gineka | Handorean Decho | Tentean Siroger | Tenkaonian Raja Namunan | Mikean Clord | Aladonian Gyanjava | Yuilwerian Mime | Pyrian Kurachek | Guirarkian Don Bianco | Zabunian Don Blaco | Assassinian Jingi | Sumasuleenian Nikaradar | Bokudenian Biskes | Sukekonoian Mashu | Dynamoian Terry X | Kulernian Jellyfis | Gimonian Angorl | Gedonian Uniga | Dragian Ganymede | Jergonian Sukeela | Chigukaden Buildjick | Agent X | Buramudo | Bergian Kuronen
Three Hell Siblings: Reversian Blitz Hells | Reversian Succubus Hells | Reversian Bon-Goblin Hells
Algolian Gas Drinkers: Algolian Volka | Algolian Whinsky | Algolian Giin | Algolian Brandyl | Algolian Baurbon
Other: Machine Monster Gigas | Space Life Form Browgouls

Corrupt SPD Agents
Kight Reidlich | Assam Asimov | Mugi Grafton

Juuzaiann Braidy | Zoinaian Baytonin | Slorpean Faraway | Poppenian Hymal | Falufian Yaako

Alienizer's logo seen on Agent Abrella's cloak

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