Classification: Extraterrestrial insectoid/hive mind race

Location/Base of Operations: Unidentified location in deep space

Known Members: None identified

Affiliations: Black Judges, Shi'ar, Supreme Intelligence

Enemies: Aria, Danger, Deathbird (Cal'syee Neramani), Ego the Living Planet, Excalibur (Colossus/Piotr Rasputin, Douglock/Warlock, Meggan, Nightcrawler/Kurt Wagner, Pete Wisdom), Legacy (Genis-Vell), Nova (Sam Alexander), Starjammers (Binary/Carol Danvers, Ch'od, Corsair/Christopher Summers, Lilandra Neramani, Raza Longknife, Sikorsky), S.W.O.R.D. (Abigail Brand, Manifold Tyger, others), Wolverine (James Howlett), X-Men (Armor/Hisako Ichiki, Banshee/Sean Cassidy, Boom-Boom/Tabitha Smith, Cannonball/Sam Guthrie, Colossus/Piotr Rasputin, Cyclops/Scott Summers, Cypher/Doug Ramsey, Eye-Boy/Trevor Hawkins, Forge, Jubilee/Jubilation Lee, Lady Mastermind/Regan Wyngarde, Lockheed, M/Monet St. Croix, Magik/Illyana Rasputin, Marvel Girl/Rachel Grey, Marrow/Sarah, Nightcrawler/Kurt Wagner, Kitty Pryde, Psylocke/Betsy Braddock, Dr. Cecelia Reyes, Storm/Ororo Munroe, Strong Guy/Guido Carosella, Sunspot/Roberto DaCosta, Tempo/Heather Tucker, Warlock, Wolverine/James Howlett), X-Treme (Adam Neramani)

Aliases: Sidrian Hunters

First Appearance: Uncanny X-Men I#154 (February, 1982)

Powers/Abilities: The individual members of the Sidri are sentient, intelligent creatures that are primarily a deep ebon black in color with an eye-shaped pink triangle on the surface and a yellow patch on their underbellies. Lacking faces, the creatures possess long black wings and a few extra tail-like tendrils (the closest description I can give using Earth creatures is like a little stingray with spindly spider legs and batwings). They can walk along their legs or glide through the air. 

    Individual Sidri can take on multiple forms, from small insectoid creatures with spidery legs to winged creatures that can fly through the sky, and they are able to fire concussive beams from the pink triangle on their form that resembles an eye and which are accompanied by a "SHREEEE" sound.

    Immune to telepathic scans, these creatures are themselves part of a collective hive mind, in contact with other members of their species consistently. The Sidri speak to each other in a unique language (likely conveyed telepathically). 

    The Sidri can combine their forms to create larger constructs, generally a large ship that is capable of surviving in and flying across the cold and vacuum of deep space at warp speed, surviving without oxygen and resistant to the extreme cold of space. The Sidri get stronger when combined into larger forms. 

    Sidri can also combine to form more humanoid structures with arms and legs.

    The combined Sidri are extraordinarily strong and durable but are resistant to sonic and energy attacks and especially to extreme heat (which can disrupt their collected shapes, scattering them back into their original forms). 

    The Sidri lay clutches of eggs in communal nests, which hatch after an unrevealed amount of time.

    Lacking obvious extrernal aural, oral, nasal or other features, it is unrevealed how they feed or perform other functions.

    A small group of Sidri were mutated by a Shi’ar virus, becoming mutants (kinda) and they were separated from the hive mind, rejected by the Sidri for being individuals. These "mutants" could combine into one powerful humanoid form wearing a suit of radiation armor, were capable of human speech and emotions, were super-strong, and could emit a sticky gel. After absorbing some of the Transmode Virus, these mutants seemed capable of altering their mutation and hoped to be accepted back by the hive mind.

TraitsThough their methods of communication with other species are unrevealed, the Sidri frequently take missions as bounty hunters, relentlessly pursuing their targets across known space.

Type: Bilaterally symmetrical arthropod/colony hive mind
Eyes: None (means of sensory input is unrevealed)
Fingers: None (tendrils extend from body at times)
Toes: None (tendrils extend from body at times)
Skin color: Black with patches of pink on top, yellow underbelly and magenta under legs
Average height: 4'0" (8'0" in length with legs)

(Official Handbook of the Marvel Universe I#10 - Sidri entry - BTS/Official Handbook of the Marvel Universe A-Z Update#3 - Sidri entry - BTS) - The Sidri, also called the Sidrian Hunters, evolved in an isolated, free-floating asteroid cluster and little has been revealed about their specific origins or civilization. 

    In time, at least part of the race became bounty hunters and took jobs working for the Shi'ar often.

(X-Men V#9 (fb) – BTS) – The Black Judges, who were under the employ of the Supreme Intelligence, sought to create a weaponized drone race and they experimented on several different races, including the Sidri, the Scatter, the Phalanx and more, but they only considered the Brood successful.

(Uncanny X-Men I#154 (fb) - BTS) – Corsair (Christopher Summers), the leader of the intergalactic pirate crew the Starjammers, had a bounty on his head and he was chased all the way to Earth by the deadly Sidrian hunters.

(Uncanny X-Men I#154) – Corsair landed among Cyclops and Storm of the X-Men, and the Sidrian hunters began smashing through the windows to fight them. Corsair yelled that extreme heat was their biggest weakness, and Storm blanketed the aliens with wind then water as Corsair and Cyclops escaped in a ship. The Sidri then combined themselves together and formed their own ship resembling a sleek black stingray with one eye and taloned feet slicing through the sky. The size of a skyscraper, the Sidri ship pursued Corsair's ship, disrupting smaller airplanes. 

    Cyclops hit the Sidri ship with an optic blast, briefly disrupting it, and then Corsair explained: "When the Sidri merge into their ship matrix, the bond that links them is almost impossible to break… a violent dissolution will act like a gigantic short circuit… but shattering the matrix requires a phenomenal amount of energy." While rescuing civilians from a helicopter that the Sidri had shot down, the pursuing Storm blanketed the Sidri ship with lightning bolts, after which Cyclops rammed the Sidri with his ship, breaking them apart. Thousands of Sidri fell to Earth, where Corsair blew them up in a massive explosion despite Cyclops briefly having second thoughts upon realizing that the Sidri were living. Corsair explained that the creatures were a colony of sentient beings who shared one mind but he had no choice but to kill them.

(Excalibur I#116 (fb)) – In space near Earth, the X-Men (Nightcrawler, Cyclops, Wolverine, Colossus, Storm, Kitty Pryde) and the Starjammers (Corsair, Lilandra, Binary, Hepzibah, Ch'od, Sikorsky, Raza), having just survived their first epic battle with the Brood, were in a rush back to Earth so they could save Professor X, who had been implanted with a Brood egg, when they passed a Sidri ship in distress. They debated about the ethics of letting the Sidri die but determined they had no choice. Nightcrawler and Kitty Pryde, wanting to save the Sidri, deployed a "Shi'ar revitalization serum" (actually a mutation virus) that would puncture the Sidri ship and rewrite their genetic codes, hopefully saving them. The Sidri in the ship mutated, growing massive in size and turning purple and yellow in coloring. When the newly-mutated Sidri tried to return to the Sidri homeworld, they were no longer accepted among the Sidri, seen as abominations, and they were cast out.

(Uncanny X-Men I#168 (fb) – BTS) – Some of the Sidri survived and laid eggs in the a store room at the X-Men's base.

(Uncanny X-Men I#168) – Kitty Pryde, Colossus and Lockheed battled the Sidri, destroying them and burning their eggs.

(Captain Marvel III#3) – Eric the Red (Davan Shakari) and the Crystal Claws sent a squadron of Sidri to apprehend the X-Treme (Adam-X) and to kill Legacy (Genis-Vell) but the Sidri were easily defeated by energy blasts.

(Wolverine II#135) – A group of Sidrian hunters were hired by the Collector to work with Torgo in capturing the escaped mutant Wolverine on Collector's prison world. The Sidri and Torgo cornered Wolverine and his ally Aria. 

(Wolverine II#136) – The Sidri helped isolate Wolverine then let Torgo handle the job.

(Excalibur I#116 (fb) – BTS) – Under unrevealed circumstances, the mutated Sidri came to Earth. They were hired by the organization Black Air to hunt down the members of Excalibur.

(Excalibur I#116) – The mutated Sidri attacked Nightcrawler in Venice, demanding vengeance for being mutated them in the first place. Excalibur attacked and discovered the Sidri ship at the bottom of the canal. They were fired upon and attacked, and the Sidri took on a powerful armored form to attack Colossus.

(Excalibur I#117) – The members of Excalibur were nearly overwhelmed by the mutant Sidri, whose strength and invulnerability were too great for them to overcome. The Sidri noticed Douglock among the heroes and saw the opportunity to take on the Phalanx technology and perhaps use it to be able to interface with the Sidri collective once again. Meggan and Peter Wisdom triggered a massive explosion that stopped the Sidri from killing Douglock, but the Sidri had drawn enough tech to make them believe the could join their race again. They combined their form into a ship and took off for space, giving up their mission of vengeance.

(X-Men IV#19 (fb) – BTS) – The Sidri were hired by the Providian Order to apprehend Deathbird (who was pregnant and being experimented on) when she escaped.  

(X-Men IV#18) – The Sidri attacked a S.W.O.R.D. station to reclaim Deathbird, cutting the power to the ship, and they swarmed inside, where they faced Abigail Brand, Manifold Tyger and members of the X-Men (Storm, Psylocke, Marvel Girl, M, Jubilee, Dr. Reyes). Soon, the hull was breached.

(X-Men IV#19) – The X-Men held off the Sidri with weather attacks and learned they were vulnerable to psychic attack.

(Nova VII#1) – When the Sidri infested Ego the Living Planet, Nova (Sam Alexander) rushed to aid the planet in repelling them.

(Giant-Size X-Men: Nightcrawler#1 (fb) – BTS) – A pack of Sidri laid a nest at the abandoned Xavier mansion in Westchester, New York. Newly hatched Sidri, cut off from their main race, saw Lady Mastermind enter, trying to use the gateway to Krakoa, and they captured her but her mind began lashing out at them with hallucinations and illusions, and she took control over the minds of some of the Sidri.

(Giant-Size X-Men: Nightcrawler#1) – The X-Men (Cypher, Lockheed, Magik, Nightcrawler, Eye-Boy) showed up at the mansion looking for a missing mutant and discovered that the Sidri (under the control of Lady Mastermind) had taken on the composite form of Rachel Summers, altering their appearance to look like Rachel so Lady Mastermind could ask for help. "Rachel" soon burst into a pack of tiny Sidri that attacked the X-Men. Cypher interfaced with the Sidri using the newly arrived Warlock, and the Sidri agreed to maintain the peace and avoid the Krakoan gateway if the rest of the estate was left to them. They then released  Lady Mastermind, and she left the Sidri on her own. Some Sidri combined into a humanoid form to say goodbye to the departing X-Men.

(Secret X-Men I#1) – The Sidri were hired by the Shi'ar to capture Deathbird and ended up fighting a team of X-Men (Banshee, Armor, Sunspot, Cannonball, Strong Guy, Marrow, Tempo, Forge, Boom-Boom), who were defending Deathbird. Banshee was able to scatter the Sidri with a sonic scream while the X-Men escaped. The Sidri then combined into a ship form and shot a tether to capture Deathbird off a spaceship. 

(Marauders II#3 (fb) – BTS) – The Sidri deposited Deathbird far across the universe, believing she would never survive.

(Wolverine VI#23 (fb) – BTS) – Looking for a place to have her baby, Danger went to the mansion and scared the nest of Sidri away with an extreme blast of heat.

Comments: Created by Chris Claremont, Dave Cockrum, Bob Wiacek and Josef Rubinstein.

    The firing of energy blasts out of their eye is rather like Cyclops or the Mindless Ones.

    In their initial appearance, these aliens are called the Sidri, the Sidrian Hunters and the Sindri. The flashbacks in Excalibur I#116-117 fall between the events of Uncanny X-Men I#167-168.

Profile by Chadman.

The Sidri have no known connections to:

images: (without ads)
New X-Men IV#18, p15, pan3 (mass of Sidrian hunters)
Official Handbook of the Marvel Universe I#10, Sidri entry (single Sidri)
Uncanny X-Men I#154, p15, pan1-2 (changing into ship)
Excalibur I#116, p3, pan4 (mutant Sidri)
Excalibur I#117, p20, pan3 (mutant Sidri ship)
Giant-Size X-Men: Nightcrawler#1, p29, pan1 (humanoid form)

Uncanny X-Men I#154 (February, 1982) – Chris Claremont (writer), Dave Cockrum (penciler), Bob Wiacek, Josef Rubinstein (inkers), Louise Jones (editor)
Uncanny X-Men I#168 (April, 1983) – Chris Claremont (writer), Paul Smith (penciler), Bob Wiacek (inker), Louise Jones (editor)
Official Handbook of the Marvel Universe I#10 (October, 1983) - Mark Gruenwald (head writer, designer, editor), Peter Sanderson, Mark Lerer, Tom DeFalco (writers), Paty (Sidri entry pencils), Josef Rubinstein (inks)
Captain Marvel III#3 (February, 1996) – Fabian Nicieza (writer), Ed Benes (penciler), Mike Sellers (inker)
Wolverine II#135-136 (February-March, 1999) – Erik Larsen (writer), Jeff Matsuda (penciler), Jonathan Sibal (inker), Bob Harras (editor)
X-Men IV#18 (October, 2014) – Marc Guggenheim (writer), Harvey Tolibao (penciler), Ed Tadeo, Craig Yeung (inkers), Mike Marts (editor)
X-Men IV#19 (November, 2014) – Marc Guggenheim (writer), Harvey Tolibao, Dexter Soy (pencilers), Ed Tadeo, Craig Yeung (inkers), Mike Marts (editor)
Nova VII#1 (February, 2017) – Jeff Loveness (writer), Ramon Perez (artist), Devin Lewis (editor)
Giant-Size X-Men: Nightcrawler#1 (May, 2020) – Jonathan Hickman (writer), Alan Davis (artist), Annalise Bissa (editor)
X-Men V#9 (June, 2020) – Jonathan Hickman (writer), Leinil Francis Yu (artist), Jordan White (editor)
Secret X-Men I#1 (April, 2022) – Tini Howard (writer), Francesco Mobili (artist), Jordan White (editor)
Marauders II#3 (June-July, 2022) – Steve Orlando (writer), Eleonora Carlini (artist), Jordan White (editor)
Wolverine VI#23 (August, 2022) – Benjamin Percy (writer), Adam Kubert (artist), Jordan White (editor)

First Posted: 03/04/2023
Last updated: 04/01/2023

Any Additions/Corrections? please let me know.

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