Jonathan Rook, also known as the Stretch Monster is the main antagonist of the Netflix Superhero cartoon Stretch Armstrong and the Flex Fighters. He is the CEO of Rook Unlimited (formerly Rook Limited) in Charter City.
He is voiced by Wil Wheaton, who also voiced Michael Morningstar in Ben 10: Alien Force, and his alternative form was voiced by the late Miguel Ferrer, who also voiced Deathstroke in Teen Titans: The Judas Contract, Shan Yu in Mulan, and Big Boss in Rio 2 and then David Kaye, who voiced Megatron in both Beast Wars and the Unicron Trilogy of Transformers, after Ferrer's death in 2017.
Biography[]
Origins[]
As a child Rook helped some kids gain more speed on a roundabout by having them use the slide for more momentum. After witnessing his work help the kids, Rook wanted to use his intelligence to help people's lives. 8 years later Rook was able to win 1st in his school's science fair with his invention a coffee alarm clock, and then won the next three science fairs after. However, Rook's mother was dying from a disease, and was given the opportunity to join the Epsilon Society, the world's most prestigious science organization whom Rook has dreamt about joining his whole life with his mother encouragement. Upon arriving at the warehouse that the Epsilon Society wanted to meet him at, they reveal that they have been watching him for time, and want to offer him the chance to do the best work of his life and with the world's greatest scientific minds with all the resources he needs, on the condition that he abandons his name and family so he has no emotional distraction. After Rook tells that he can't abandon his mother while she is ill, the Epsilon Society disappears.
Rook then returns to the hospital, only to sadly that his mother has died. After Rook started his company called Rook Limited (which would later become Rook Unlimited) with his mentor Dr. Racine Cleo (Dr. C), and begin working the Dashtis to turn Charter City into a Futuristic place for people to live in. After the company succeeded at getting a city contract to create a hyper speed railway know as the Mag Lev Train, the company begin to expand and turning a from gang ridded city into a futuristic metropolis and as well as making Rook famous worldwide. At he begin working with Dr. C and the Dashtis on a compound Dr. C created known as Flexarium, that he give people could mutate people. He later visited by a member of the Epsilon Society, who offered a chance to join the group again, but he refuses.
After his head of security Malcolm Kane escorts the Epsilon Society member out of his company, Rook decides to begin the next phase of Flexaruim testing on that night, he decides to inject the hyper flexarium, despite the protests Dr. C and the Dashtis that they are not ready for human testing trials yet, and mutates himself into a monster with the powers of elasticity. He then attacks his collogues but they manage to subdue him, although he manages to scare Dr. C's eye. Then they leave him for the Pearl Islands to find a cure for the flexarium, but Rook manages to escape and attack their planes killing the Dashtis and the pilot, but unbeknownst to Rook that Dr. C had survived and team up with the Dashtis' orphaned daughter Riya. Afterwards began to work on test with hyper flexarium in secret, but he continued to fail find someone who it does not turn into a monster.
The Flex Fighters[]
One day Rook is given a breakthrough when three teenage boys fall into one of Rook Unlimited's facilities are mutated by the flexarium. After they escape being captured by Kane, Rook comes to the facility to address, the media offer a reward, when, Dr. Don Robertson, one of his disgruntled employees, is accidentally mutated into a giant monster, called Multi-Farious, who then attacks him. After Kane and his security force try contain Multi-Farious, Rook arrives by helicopter to help, despite Kane telling to leave for his own safety. Rook tries to calm down Multi-Faroius by telling him he can find an antidote, but Multi-Farious, still blinded by his rage over being mutated, attacks helicopter, but he is saved by one of teens. After Multi-Farious escapes and the three teens allow themselves to be taken by Kane and his security force, they brought to Rook Unlimited, where welcomes them and offers to hire them to be the official superheroes of Charter City. Not knowing his true motives, they accept, on the condition that identities can remain secret, which Rook agrees to, and then Rook gives them visors that contain uniforms for the teens, now called Stretch, Wingspan, and Omni-Mass, the Flex Fighters.
In the last three episodes, he has laid out all his plans perfectly so that no matter what happens he will win in some way. He first manipulates the Flex Fighters by purposefully losing to them and then pretending to have been forced to work with Dr. C the entire time. He only did this so that he could get access to her lair and steal the Prolotite which he needed to create his army of Flexarium monsters.
He wasn't able to find it though at first but has a backup plan, managing to lure Blindstrike to his lair and drain her of the Prolotite that is in her suit. He does get his army destroyed by the Flex Fighters though, and while he views this as a setback he is not discouraged. He poisons the Flex Fighters through their snow cones as they manage to figure out he is Stretch Monster at that point and then frames them for an attack on him so they are branded as criminals.
Throughout the second season, he continues hunting down the Flex Fighters knowing that they will be his biggest threat. However, this obsession is taken advantage of somewhat by the Tech Men and he is thrown out of his building. He, however realizes this and decides to team up with the Flex Fighters to stop their common enemy.
When the Tech Men are defeated Rook reveals that he has managed to erase the confession that he was forced to record and also rigged the device that activated his shock collar instead to spray a gas that knocks out Dr. C. Rook now has his company back and has managed to get away with everything. Unaware to Rook, The Gentleman knows who he is and plans to exposed his identity.
Personality[]
Rook appears to be a kind, charismatic, and helpful person who wanted to make Charter City a safe place and help the citizens of the city. He is eccentric, yet somewhat egocentric, believing nothing is impossible. However, he is later truly revealed to be a cunning, manipulative liar, who is willing to do whatever it takes to get he wants. He is ruthless, sadistic, and is willing to use torture, murder, or brainwashing in order to fulfill his own ambitions.
Despite this, Rook truly loved his mother, not wanting to abandon her when she was when the Epsilon Society offered him membership on condition he abandons his name and family. He also wanted to help his employee, Don Robertson, by offering to find an antidote when he is mutated into Multi-Farious.
in season 2 he’s wearing black Shirt and pants because somewhat to be his evil look.
Trivia[]
- As of 2025, there's still no word on a third season as Rook is still on the loose but if the show returns, The Gentleman will exposed his identity to the public and Rook would finally be defeated.
External Links[]
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 Villains
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Stretch Monster | Tech Men (Malcolm Kane) | Multi-Farious | Circuit-Stream | The Freak Sisters | Smokestack | Mickey Simmons | Madam Tousant | Murikami | Quick Charge | Flexarium Monster | Mechanica | Dr. Dreamscape | The Gentleman | Anastasia | ||