Ben 10 Fan Fiction Wiki
Ben 10 Fan Fiction Wiki
Rook Blonko
Real Rook.png
General Information
Species Revonnahgander
Age 19
Affiliations Ben Tennyson
Gwen Tennyson
Occupation(s) Plumber
Powers and abilities
Abilities Expert Hand-to-Hand Combatant
Advanced Acrobatics
Advanced Weapon Skills
Modifying Technology
Enhanced Agility
Enhanced Jumping
Sharp Claws
Equipment Proto-Tool Mark 3
Proto-Tech Armor
Relatives To be added
Alternate Counterparts Rook Blonko (Dimension 99)
Voice Actor Bumper Robinson
First Appearance An Unexpected Upgrade

Rook Blonko is a Revonnahgander Plumber and one of the main characters in Ben 10: Omnitrix Unlimited.


He looks identical to his Omniverse appearance, but slightly taller and more muscular.


Rook's personality is very similar to the one in Omniverse, but with a few alterations. Rook now tolerates Ben, since the latter has matured and they are in fact best friends, which is confirmed by Ben in Ben 10: Across the 23rd Dimension. While he has a better understanding of Earth customs and expressions, he still finds himself in incovenient situations. He always refers to Gwen as Ms. Tennyson, even though she encourages him to call her by her first name. He and Kevin are not very close, but they seem to like each other. Rook has developed an even greater disgust of chili fries, so much that even a slight mention of it makes him vomit.

Rook watches regularly documentaries and has admitted that he has become addicted to television, which he tries to avoid by reading books and meditating. Rook rarely gets angry, but is always determined to fight alongside his friends and allies in order to protect Earth, which he now considers his new home.

Even though Rook doesn't interact much with the villains, he seems to have developed a rivalry with Khyber, mainly because the latter broke his ribs in It's...Echo Echo Time! and attempted to kill him multiple times, with the most notable one being in Highbreed Invaded: Part 2.


Rook first appeared in An Unexpected Upgrade and is also the first character seen in the series. Dr. Psychobos attacks him in Plumbers' HQ, with the purpose of retrieving Rook's Proto-Tool for yet unknown reasons. With the help of Ben, Gwen and Kevin, they manage to scare Psychobos off.

In Welcome To College, Rook, Rook decides to attend Friedkin University like Ben, with the latter finding the idea quite humorous. Despite being nervous and unsure of himself, Rook manages to befriend Cody and excel in several subjects.

Rook does not have a significant role until Highbreed Invaded: Part 1, when he volunteers to bomb Vilgax's machine that creates his drones. Due to the radius of the blast, whoever denonated it would perish. Rook takes the risk and remains to his decision even after Ben tries to persuade him otherwise and simply asks him to cover him while he completes the task. The bomb detonates in the end of the episode, leaving his fate unknown.

Rook is revealed to be alive in Highbreed Invaded: Part 2, due to the fact that his Proto-Tech Armor took most of the impact, resulting in its destruction. He is found by Azmuth, who not only restores him to full health, but also grants him a new weapon after his Proto-Tool was taken by Khyber, the Proto-Tool Mark 3, an enhanced version of the previous one. Later, Rook saves Ben from Ultimate Hypnotick, much to the latter's surprise and fights and defeats Khyber in unarmed combat.

In Ben 10: Across the 23rd Dimension, Rook gets possessed by MAL.W.A.R.E. and attacks Gwen. After defeating Ben 23 as Pile-o'-Goo and Kevin, Ben as Ultimate Echo Echo reluctantly uses his Sonic Doom ability on him, which only stuns him, revealing that Revonnahganders possess remarkable durability.


Ben 10: Omnitrix Unlimited


  • Ben is Rook's best friend.
  • His favorite Earth animal is a cat and his favorite Omnitrix alien is Rath.
  • His craving for meatball subs has waned over the past 2 years.
  • His favorite food, apart from Amber Ogia, is pasta.
Ben 10: Omnitrix Unlimited
Ultra3000 (Creator) - UltiVerse (Co-Writer)
Ben Tennyson - Gwen Tennyson - Kevin Levin - Rook Blonko
Dimension 1
Albedo - Eon - Faction (Doctor Psychobos - Khyber - Khyber's Anubian Baskurr) - Maltruence - Overlord
Sapient Transformations
Dimension -1
Dimension 1
Alien X - Alien XIII - AmpFibian - Arctiguana - Armodrillo - AssassinTen - Astrodactyl - Atomix - Ball Weevil - Big Chill - Blitzwolfer - Bloxx - Brainstorm - Bullfrag - Buzzshock - Cannonbolt - ChamAlien - Chromastone - Clockwork - Cloud 10 - Crashhopper - Decagon Vreedle - Diamondhead - Ditto - Eatle - Echo Echo - Eye Guy - Façade - Fasttrack - Feedback - Four Arms - Frankenstrike - Ghostfreak - Goop - Gravattack - Grey Matter - Gutrot - Heatblast - Humungousaur - Jetray - Jury Rigg - Kickin Hawk - Lodestar - Metashift - Mole-Stache - Nanomech - NRG - Pesky Dust - Persuader - Portaler - Pursuant - Quantum - Rath - •REC - Ringmaster - Ripjaws - Rocks - Rookie - ɿoɿɿiM - Sandbox - Scorch - Shellhead - Shocksquatch - Shroud - Skidmarx - Slick Stick - Snakepit - Snare-oh - Spidermonkey - Spitter - Squidstrictor - Stinkfly - Swampfire - Terraspin - The Most Useless Alien Of All Time - The Worst - Toepick - Under the Skin - Upchuck - Upgrade - Vaccine - Walkatrout - Water Hazard - Way Big - Whampire - Wildmutt - Wildvine - Wither - XLR8 - Yin Yang
Ultimate Arctiguana - Ultimate Big Chill - Ultimate Cannonbolt - Ultimate Diamondhead - Ultimate Eatle - Ultimate Echo Echo - Ultimate Goop - Ultimate Gravattack - Ultimate Heatblast - Ultimate Humungousaur - Ultimate Rath - Ultimate Spidermonkey - Ultimate Swampfire - Ultimate Water Hazard - Ultimate Way Big - Ultimate Wildmutt
Dimension 7
Bro Chill - Hawk Bro - Mixtape Bro
Dimension 12
Dimension 23
Alien 13 - Barnacle Man - Brainicrab - Clockwork - Frog Meister - Moth Man - Nuke-In-A-Box - Pile-o'-Goo - Plantfire - Speedraptor
Super Awesome Plantfire
Dimension 67
Alien ΙΓ - Diamondhead
Dimension 99
Blaze - Bloodstrike - Chamolizard - Clockwork - Fastah - Living Amplifier - Rage - Spider-Mankey - Stinkplant
Superior Living Amplifier
Dimension 131
Dimension 616
Dimension 999
Scream - Shredd - Slasher - Sludge
Dimension 2030
Diamond Arms (Diamondhead - Four Arms) - Ghostgrade (Ghostfreak - Upgrade) - Snarevine (Snare-oh - Wildvine) - XLR-Wolf (XLR8 - Blitzwolfer)
Dimension 3000
Chemix - Crystal Rock - Crystalshard - Shriek
Non-Sapient Transformations
Dimension 1
Apex - Bloodmarsh - Buglizard - Bulletshark - Bypass - Crabdozer - Dead End - Demonisher - Disbatch - Duplicat - Electriskull - Exhairvator - Feralscreech - Highlight - Hypnotick - Mucilator - Mycetopathia - Nightscare - Omnivoracious - Primental - Sheargas - Slamworm - Smoother - Soulpiercer - Stickup - Tearaway - Terroranchula - Toxisludge - Tyrannopede - Upsurge - Vicetopus
Ultimate Hypnotick - Ultimate Panuncian
Season 1 Episodes
An Unexpected Upgrade - Welcome To College, Rook - It's...Echo Echo Time! - Time To Go Useless - Anger Management - You Are Begging For Trouble - The Negative Effect - A Day in the Life of A Hero - Highbreed Invaded: Part 1 - Highbreed Invaded: Part 2
Season 2 Episodes
99 For A Change - Ben Quest - Ben 10: Across the 23rd Dimension - F.A.I.L. - Lights Out - Catfight...Again?! - Mind Over Matter - I Hate Time Travel - Forever Lost - No Hope - The End of Time