Thomas

Portrayed by Dylan O'Brien.

Thomas is the last male Glader.

Maze Runner: The Death Cure
Thomas helps Newt, Frypan, Brenda, Jorge, Vince, Harriet, and the Right Arm rescue Aris, Sonya, and a group of Immunes and take them to their new hideout.

At night, when Thomas leaves the hideout to go to the Last City to rescue Minho, Newt and Frypan join him.

The next day, Thomas, Newt, and Frypan drive into the sewers, where the Cranks attack them, Frypan shoots at them with a shotgun, but soon runs out of ammo. Brenda and Jorge arrive and save them from the Cranks. Thomas tells Brenda that he didn't want to put anyone in danger and Frypan thanks Brenda and Jorge for saving them.

Thomas, Newt, Frypan, Brenda, and Jorge arrive in the Last City. Thomas is scanned at the gate, and the WCKD guards recognize him. Thomas, Newt, Frypan, Brenda, and Jorge run from the turrets and into a safe corner where a crew wearing gas masks rescue them and take them to a hideout, where a member of the crew reveals himself to be Gally. Thomas, remembering when Gally killed Chuck while stung by a Griever, punches him in the face. Thomas gets on top of Gally to try and attack him. Newt rushes over and stops Thomas. Thomas reminds Newt of when Gally killed Chuck. Newt replies that he remembers that Gally was stung by a Griever and half out of his mind. With that, Thomas gets off Gally. Newt asks Gally how he is still alive, as he, Thomas, and Frypan watched him die. Gally replies that he, Thomas, and Frypan left him to die and that if he and his crew hadn't found them, Brenda, and Jorge, they would be dead. Newt tells Gally that Minho is being held in the WCKD tower and that he, Thomas, Frypan, Brenda, and Jorge are looking for a way in. Gally offers to help them get into the WCKD tower. Thomas, at first, refuses to follow Gally, but Gally replies that he can get him, Newt, Frypan, Brenda, and Jorge through the walls.

While going with Newt, Gally, Frypan, Brenda, and Jorge to Lawrence's hideout, Thomas is told by Gally that he was found lying on the floor of the WCKD lab with the spear still in his chest by Lawrence's crew, who, after discovering that he is immune to the Flare, pulled the spear out of his chest and took him to the Last City to meet Lawrence, who nursed Gally back to health and convinced him to join his crew. Thomas is told by Gally that Lawrence's crew is working to destroy WCKD. Thomas is told by Gally not to stare at Lawrence.

Thomas, Newt, Gally, Frypan, Brenda, and Jorge arrive in Lawrence's hideout. Thomas tells Lawrence that he, Newt, Frypan, Brenda, and Jorge need to get into the WCKD tower, as Gally said that he can get them through the walls of the Last City. Lawrence replies that the way into the WCKD tower is impossible. Gally replies that the way into the WCKD tower won't work without Thomas. When Lawrence asks Thomas why he should trust him, Thomas replies that WCKD has something they both want. Lawrence tells Thomas that he, Newt, and Gally can go into the Last City while Frypan, Brenda, and Jorge stay behind. Thomas agrees and shakes Lawrence's hand. As Gally lowers a ladder into the sewers, Jorge tells Thomas to be careful going with Newt and Gally into the Last City. Thomas agrees.

Thomas, Newt, and Gally walk through the tunnels where Gally approaches a generator and turns on the lightbulbs so he can lead Thomas and Newt through the tunnels.

At night, Gally leads Thomas and Newt through the Last City. They hear an announcer telling everyone in the Last City to return home. With that, Thomas, Newt, and Gally decide to return to Lawrence's hideout. On the way back to Lawrence's hideout, Thomas, Newt, and Gally hide from the WCKD soldiers.

After Thomas, Newt, and Gally return to Lawrence's hideout, Gally uses a telescope to look at the WCKD tower and tells Thomas and Newt about its security system. When Thomas asks Gally about the way in that he had mentioned before, Gally convinces Thomas to look through the telescope, Thomas agrees and sees Teresa working in a lab. Gally reveals to Thomas that he plans to use Teresa to get into the WCKD tower.

The next day, in Lawrence's hideout, Thomas, Newt, Gally, Frypan, Brenda, and Jorge go over plans to use Teresa to get into the WCKD tower. Thomas is reluctant to use Teresa as their way into the WCKD tower. Brenda reminds Thomas of when Teresa betrayed them, leading Gally to remark to Thomas that he likes Brenda. Newt reacts with extreme aggressiveness, screaming at Thomas for still having feelings for Teresa. Shocked about himself, Newt apologizes and walks out.

Thomas finds Newt sitting on a rooftop. Newt reveals to Thomas that he has been infected by the Flare, as revealed by the black veins on his right arm. Newt reveals that the reason WCKD put him in the Maze was because they wanted to tell the difference between immunes like Thomas and people like himself. Thomas tells Newt that he can cure him. Newt replies that they need to get Minho out of the WCKD tower. Thomas agrees.

The next night, after telling Gally that Newt has been infected by the Flare, Thomas goes with him into the Last City to capture Teresa, while Newt, Frypan, Brenda, and Jorge go to an abandoned church. When Teresa leaves the WCKD tower, Thomas goes to lure Teresa into an alley while Gally waits in the alley. Teresa sees Thomas on the other side of the street and follows him into the alley where they talk. After they finish talking, Thomas signals for Gally to put a sack on Teresa. Thomas and Gally take Teresa to the church where Newt, Frypan, Brenda, and Jorge are. Teresa is shocked to see that Gally is alive, and Gally asks her where Minho is. Teresa replies that Minho is in Sub-Level 3 with the Immune teenagers. Gally takes a scalpel and tries to use it to cut off Teresa's finger, but Thomas takes the scalpel from him. Thomas convinces Teresa to remove their trackers.

While removing Thomas' tracker, Teresa discovers that Brenda is looking good and healthy and asks Thomas when her last treatment was. Thomas replies that Brenda's last treatment was back in the mountain camp of the Right Arm. Teresa removes Thomas' tracker. Gally approaches Thomas and Teresa and asks them if everything is okay. Thomas replies that everything is okay.

Disguised with WCKD soldier overall uniforms and face-masking helmets, Thomas, Newt, and Gally go with Teresa to the WCKD tower, while Frypan climbs up a crane, Brenda goes to a parking lot to steal a bus, and Jorge returns to the Right Arm's hideout.

While Gally enters the WCKD tower through the main entrance, Thomas, Teresa, and Newt enter the WCKD tower through the main entrance.

Thomas, Teresa, Newt, and Gally arrive in a stairwell. While Newt coughs from being infected by the Flare while leaning over the stairwell railing and Gally plugs a jamming device into the electrical box, Thomas talks to Frypan and Brenda on a walkie-talkie.

Thomas, Teresa, Newt, and Gally arrive in Sub-Level 3 where Thomas, Newt, and Gally shoot the WCKD guards. Thomas discovers that Minho is not in the cell and asks Teresa where he is. Teresa shows Thomas Minho's profile and tells him that Minho has been moved up to the medical wing. Thomas, Teresa, and Newt go to find Minho, while Gally takes the vials of serum out of the vault and takes them and the Immune teenagers to Brenda.

Thomas, Teresa, and Newt take the elevator to find Minho. Janson joins them in the elevator and talks to Teresa, but then realizes that Thomas and Newt are in the elevator, but Thomas, Teresa, and Newt manage to escape. When Thomas asks when the Flare will stop, Teresa replies that it stops when WCKD finds a cure. Thomas replies that there is no cure. Janson holds them at gunpoint, but Teresa manages to let Thomas and Newt go to find Minho while she goes to do a blood test on Thomas' blood.

Thomas and Newt reunite with Minho and they and him escape from Janson and the WCKD soldiers. Thomas, Newt, and Minho manage to lock themselves in a room. Thomas and Minho manage to break the window and they and Newt jump out of the window and into the pool. When they get out of the pool, four masked soldiers approach them and tell them to surrender, but one of them shoots the other three, takes off his helmet, and reveals himself to be Gally. Minho is shocked to see that Gally is alive, and Gally tells him, Thomas, and Newt that they are nuts.

While Thomas, Newt, Minho, and Gally are hiding from the WCKD soldiers, Thomas asks Gally how far the tunnels are. Gally replies that the tunnels are twelve blocks away from the WCKD tower. While Minho and Gally talk to each other, Thomas carries Newt off into the Last City.

While going to the berg, Thomas, Newt, Minho, and Gally see the walls of the Last City exploding as a result of Lawrence sacrificing himself to destroy them. Gally says that Lawrence's crew is supposed to destroy WCKD and not the Last City. Thomas convinces Gally to come with him, Newt, and Minho.

While hiding behind garden beds, Thomas, Newt, Minho, and Gally see the battle between the WCKD soldiers and Lawrence's crew. Thomas, Newt, Minho, and Gally manage to escape.

Newt is unable to get to the berg due to being infected by the Flare, leading Minho and Gally to run to the berg to get the serum from Brenda. Newt gives Thomas his necklace before passing out. Thomas hears Teresa telling him that his blood can cure Newt like it did Brenda. Newt becomes a Crank and attacks Thomas. Thomas fights Newt and stabs him in the chest with a knife. Minho, Gally, Frypan, and Brenda arrive and see Newt's dead body. Thomas walks off to the WCKD tower while Minho, Gally, Frypan, and Brenda gather around Newt's dead body.

Thomas arrives in the WCKD tower and approaches Ava Paige, who tells Thomas that he save them, but is shot in the back by Janson, who takes Thomas to a lab where Teresa is extracting his blood. Janson reveals to Thomas that he has been infected by the Flare and plans to inject the serum with Thomas' blood into his arm, causing Teresa to hit Janson in the head with a glass flask, knocking him unconscious. Teresa tries to release Thomas, but Janson regains consciousness and knocks Teresa down. Thomas frees himself and engages Janson in a fight, but Janson overpowers him and prepares to shoot him, when Lawrence's crew fires a missile at the WCKD tower, knocking Thomas, Teresa, and Janson down. Teresa carries Thomas to the medical wing, but not before Janson shoots Thomas in the stomach. Teresa offers to give Janson the serum containing Thomas' blood, but Janson refuses and wants Thomas himself. Thomas throws a very heavy object at a glass front, allowing the Cranks that are locked inside it to break out and attack Janson. Teresa carries Thomas to the roof, gives him the serum containing his blood, and kisses him. Minho, Gally, Frypan, Brenda, Jorge, Vince, and the Immune teenagers arrive in a berg. Thomas is unable to get on the berg due to his wound, but Teresa throws him onto the berg, allowing Minho, Gally, Frypan, Brenda, and Vince to pull him aboard. Teresa falls to her death when the WCKD tower collapses. As Jorge flies Thomas, Minho, Gally, Frypan, Brenda, Vince, and the Immune teenagers away from the tower, Gally administers a bandage on Thomas' wound.

Sometime later, Thomas, Minho, Gally, Frypan, Aris, Brenda, Jorge, Vince, Sonya, Harriet, the Right Arm, and the Immune teenagers arrive at the Safe Haven. Thomas wakes up in a hut, discovers the bandage on his stomach, walks out of the hut, and approaches Minho, Gally, Frypan, Aris, Brenda, Jorge, Vince, Sonya, Harriet, the Right Arm, and the Immune teenagers. Thomas hugs Minho. At night, at the campfire, Thomas, Minho, Gally, Frypan, Aris, Brenda, Jorge, Sonya, Harriet, the Right Arm, and the Immune teenagers listen to Vince give a speech.

Minho gives Thomas Newt's necklace, which Thomas discovers contains a note from Newt. Thomas reads the note, in which Newt tells him to look after everyone, before thanking Thomas for being his friend. Thomas approaches Minho, Gally, Frypan, Aris, Brenda, Jorge, Vince, Sonya, Harriet, the Right Arm, and the Immune teenagers at the campfire, hugs Gally and Brenda, and sits down with them, Minho, Frypan, Aris, Jorge, Vince, Sonya, Harriet, the Right Arm, and the Immune teenagers at the campfire. The next day, Thomas goes to the memorial rock and carves Teresa's name on it. Thomas walks along the beach, stops walking, looks at the ocean and the ship, takes out the serum, looks at it, and looks out into the distance.