Real name

[ 1 ]

Gaius Grieves


The Thinker




Flag of Scotland.png scottish
Na4ev1nphkg71.png Corto Maltesean



Reading: Thinker






Silvio Luna
Task Force X ( forced allies )





The Suicide Squad

TV series

Peacemaker ( archive footage )


Portrayed by

Peter Capaldi

If God existed, wouldn’t this be proof that he wasn’t good at all?
―Thinker to Rick Flag[src]

Doctor Gaius Grieves [ 1 ] was a hyperintelligent metahuman scientist known as the Thinker. He was used as one of the clear scientists of Corto Maltese authoritarian General Presidente Luna to help develop Project Starfish. late, he was captured by Task Force X and forced to join them in their fight against Luna and his project. [ 2 ] Fueled by self-preservation, Grieves led Task Force X to Jotunheim, where they unintentionally released Starro the Conqueror, who killed Grieves for imprisoning it .


affiliation with Jotunheim

The United States made a secret deal with the Corto Maltese government to conduct their illegal experiments here, in Jotunheim. And they hired me to oversee them.
―Thinker to Rick Flag[src]

Gaius Grieves was hired as a chief scientist at Jotunheim and experimented on Starro. He served under the Herrera family in developing the mighty Project Starfish around the creature and its abilities. He was barbarous as Starro ‘s captor, unnecessarily torturing the extraterrestrial being and its hosts in multiple experiments. It is implied he sexually abused the Starro or its captives a well, as one host stated Grieves “ had his way ” with them. finally, Gaius Grieves would start frequenting La Gatita Amable golf club in the city of Valle Del Mar. [ 2 ]

Targeted by Task Force ten

Dealing with Silvio Luna

But as I noted, I’ve been working with the beast for thirty years. And there’s no one but me capable of controlling it.”
“Well, then, welcome to the team.
―Gaius Grieves and Silvio Luna[src]

In 2021, the Corto Maltese Armed Forces led by Silvio Luna would carry out a coup d’etat, assassinating the Herrera class in a public performance and taking power in the country, being from a completely anti-american party. A week later, in retaliation, Amanda Waller sent Task Force X to kidnap Gaius Grieves and force him to destroy all records of the Project Starfish. [ 2 ] interim, Silvio Luna contacted Grieves to discuss about the Project Starfish. At the merging, Mateo Suarez mocked Thinker ‘s mind, indeed Thinker responded ironically, making Suarez angry, Luna stopped Mateo telling him to behave. Thinker continued explaining the project and its history with video recording of his meet with NASA, ultimately Thinker told them that the creature was hidden in Jotunheim .
then, Gaius Grieves accompanied Silvio Luna and the Armed Forces to see the creature that remained hidden on the base to take possesion on it. When Luna saw a likely to take over the world using the beast as a weapon, Grieves explained that he was the only person who could control the creature, indeed Luna greeted him with a handshake to forge an alliance with the new government, in that moment Luna retired to meet the prisoner Harley Quinn. [ 2 ]

Kidnapped by Task Force ten

That is a gun, so smile. We’re old mates and we’re gonna take a trip to Jotunheim.”
“Even with my help, do you really think you can get into Jotunheim?
―Gaius Grieves and Robert DuBois[src]

The keep up night, Grieves would visit La Gatita Amable baseball club where Task Force X awaited his arrival, Bloodsport would approach him to threaten him with a pistol to force them to go to Jotunheim and let them enter. When leaving the set, the soldiers of the arm forces would arrive in search of the Americans who arrived in the nation. [ 2 ]

consequently, Bloodsport would ask Cleo Cazo and Abner Krill to take Gaius Grieves to the truck using the binding doors and threatening him with the pistol, while DuBois, Smith and Flag would surrender to the soldiers. then the group would go through a bathroom of employees scaring some naked women, when Milton left he would assure them while Thinker spoke loudly to try to generate randomness, finally Cazo threatened to put a twelve rat in his ass and the group escaped in the truck. [ 2 ] DuBois ‘s group would manage to escape from the armed forces by crashing the hand truck in which they were transported and killing the soldiers, captured Thinker would see the police squad captured with handcuffs to meet again, while planning a deputation in search of Harley Quinn. [ 2 ] After having found Quinn, the team would take Thinker over a building where they would explain their mission and how he was to help them enter. Thinker warned them that there were cameras everywhere at the base, so Cazo explained that he had already taken concern of them with the aid of the rats, then the squad would continue explaining while Grieves saw the deputation as a suicide, thus twist Flag replied that that was their specialization. [ 2 ]

infiltration in Jotunheim

Child, your government didn’t sent you here to protect the world from alien technology. Your government send you here to cover up their part in it.
―Gaius Grieves to Cleo Cazo[src]

The police squad then headed in the truck towards the entrances of the Jotunheim bases, where Grieves was forced to accompany them, as a heavy rain stalked towards the gates, making it easier for Task Force X to enter, killing multiple guards and arriving to the root, but alerting more soldiers who started chasing them. After they get through the first guards, Peacemaker shoves the Thinker ‘s front into the retinene scan in order to enter Jotunheim. [ 2 ] Inside the build the squad forced Grieves to take them to the floor where the animal was, upon arriving Task Force X sees the numerous victims of Grieves ‘ experiments, consisting of dissidents and journalists opposing the Herrera regimen that have been used as test subjects in Project Starfish. These captives – all possessed by Starro – plead with Task Force X, revealing that Grieves has tortured and “ had his manner ” with them. [ 2 ] Grieves then divulges that Corto Maltese secretly worked with the american politics to study Project Starfish, with Peacemaker having been sent by Amanda Waller to cover up evidence of said connivance. suddenly, the explosives placed throughout Jotunheim go off earlier than expected, disrupting the confrontation between the Thinker and Task Force X, and shattering the glass window overseeing Starro ‘s enormous cellular telephone. [ 2 ]

Killed by Starro

Okay, let’s all just calm down. Please let’s talk about this. I crossed the line. OK, I CROSSED THE LINE! I REALIZE IT, BUT I’M READY TO CHANGE! I AM READY TO CHANGE! I DIDN’T MEAN TO HURT YOU!
―Gaius Grieves’ last words to Starro[src]

With Jotunheim in ruins on the verge of flop, and Starro ‘s parturiency at an end, Gaius Grieves has precisely enough meter to realize what has happened before Starro ‘s tendrils shoot out from the shattered window and wrap about Grieves, who is dragged into the early ‘s cell, leaving trails of blood from his fingers in a bootless attack to hold on to the deck. Brought before Starro, Grieves urgently tries to diffuse the position by promising to change, only to have one of his arms and legs ripped off. Starro then throws the Thinker ‘s body at a window hard enough for it to splatter on the glass upon affect. [ 2 ]


Your people have always been squeamish about the sacrifices necessary for scientific advancement.
―The Thinker to Rick Flag[src]

The Thinker appeared to be crafty and manipulative, seamy, self-preserving, and intelligent. He attempted to play to the weaknesses of Task Force X, and was reluctant to join them as he valued his life and did n’t want to die, hinting that every military action he took was for his own amplification.

The Thinker besides appeared to be sadistic and barbarous, shown through his experiments conducted on Starro. Thinker had tortured Starro for decades, mutilating and, as claimed by Starro, having his means with it, which he himself never denied. however, once the tables had turned and Thinker was at Starro ‘s mercifulness, he was shown to be highly cowardly and attempted to beg for his life. Starro ignored this and promptly killed its torturer .

Powers and abilities


  • Superhuman intelligence: The Thinker had extreme intelligence and incredible problem-solving skills. The electronics embedded in his head supposedly amplified his cognition, though this was stated in jest, so the accuracy of this claim cannot be determined. He was a geneticist and a master tactician, as well as extremely knowledgeable.[3]


  • Bilingualism: The Thinker is fluent in English and Spanish.


All that shit in your face, is to make your brain good?”
“Yes. Makes my brain good.
―Mateo Suarez and Thinker[src]
  • Brain enhancers: Thinker has several electrical diodes and antennas that connect with his brain, possibly to enhance his intelligence.[3]


Behind the scenes


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