Dr. Gregory Butler is a supporting character in Happy Death Day and the main antagonist in Happy Death Day 2U.
Biography[]
Gregory is a professor at Bayfield University and a physician at Bayfield University Hospital. He secretly had sexual affairs with Tree Gelbman, until Tree ended it.
In 2016, the International Physicians Corps awarded Gregory for "Excellence in Medicine".
First Dimension[]
Tree goes to her class and later meets with her professor, Gregory Butler (Charles Aitken). The two are having an affair despite Gregory being married. His wife Stephanie (Laura Clifton) is at the door after Tree kept it budged.
First Dimension Death[]
Later, after crossing off Tim, Stephanie and Danielle's names, Tree suspects Gregory might be the killer. She looks for him in the hospital after getting an x-ray taken to find that she has sustained internal damage from her previous deaths. While going through Gregory's office, Tree finds a baby mask in his drawer. However, the killer stabs Gregory in the back and then chases Tree into the parking lot.
Gregory's First Dimension Death
His death was reversed when Tree was killed.
Second Dimension[]
Tree goes to the hospital to intercept serial killer John Tombs before he escapes, but is confronted by a police officer who attempts to arrests her for brandishing an axe. Gregory (dressed up as Babyface) kills the officer and when Tree says she knows the killer is Lori, she appears behind her and pulls her into an elevator to save her, revealing that Lori is not the killer. She tells her that Babyface cannot be Tombs because she just took him in for surgery. As they make their way out, babyface stabs and kills Lori, then chases Tree to the roof, where she accidentally falls to her death. She wakes at the beginning of her loop, and demands that Ryan and his team help her escape it, requiring they test dozens of algorithms. At Carter's suggestion, Tree serves as the group's recorder, killing herself at the end of each day so they can start again. These deaths include electrocuting herself, drinking drain cleaner, skydiving without equipment, and even throwing herself into a wood chipper. Waking up from a loop in which she throws herself from a bell tower, her injuries catch up with her and she faints. Waking up in the hospital, she is greeted by Carter and Dr. Gregory Butler, who was having an affair with Tree before, but now he doesn't recognize her at all. Tree remembers that Lori was having an affair with Dr. Butler so he warns him about her death and sends him to go save her. Tree steals a gun to go after Tombs, only to find Lori already dead. Babyface attacks and Tree shoots him dead. However, a second Babyface appears, forcing Tree to kill herself and Babyface by igniting a set of gas tanks.
Tree relays the information she's learned through out her time loop to the group and they finally discover the correct algorithm to close the loops for good, unfortunately SISSY shuts down after Samar accidentally downloads a virus from his email causing a 7-hour delay. Faced with a choice of which reality she wants to be in when both time loops close, Tree decides to remain in the current dimension as she does not want to lose her mother again, even at the expense of her relationship with Carter. Carter urges Tree to consider the consequences of living a life that is not truly hers, and states that her experience with grief helped shape the person she is now. Regardless Tree decides to spend the night with her parents at a hotel to avoid Babyface, on the way however Tree begins to realize her mistake of living in this dimension as her mother recalls birthday memories to Tree that she does not remember and tells her that she would always remain with her father if she had another chance at life. That evening, the news reports that Carter was murdered along with Lori and the Officer at the hospital, so she calls Ryan and begs him not to close the loop, but he doesn't answer. Tree kills herself so she can save Carter and Lori, by driving at full speed towards the University's power plant just before the loops close. The loop restarts, and Tree decides to return to her own dimension. She advises Lori to end her affair with Dr. Butler, discovers that Danielle is cheating on Carter, and has a final conversation with her mother.
As the group starts up SISSY Bronson unplugs and confiscates it before the group can activate it. Believing she is too weak to survive another loop, Tree insists they retrieve the device. The group enlists Danielle to distract Bronson while they recover SISSY. As Ryan readies the device, Tree goes to the hospital to rescue Lori from Tombs, but is trapped by the second Babyface – revealed to be Dr. Butler. Tree deduces everything she learned during the time loops, that Dr. Butler's wife Stephanie found out about his affair with Lori and in order to bury the evidence of the affair, he drugged John Tombs and equipped him with a knife and Babyface mask so that when he woke up he would stab Lori to death, taking the blame for the murder. Dr. Butler however reveals that Stephanie was in on the scheme as well, wanting to save their marriage, she appears and shoots Lori and they disarm Tree together.
Second Dimension Death[]
Gregory's Second Dimension Death
Stephanie the gives Gregory a gun to finish them off, but he betrays and shoots her as well stating that he is finished with her. Carter shows up to distract Butler and Tree runs away as he goes after her. After leading him into an MRI room, Tree outsmarts Butler by activating the MRI magnet pinning him to it with a wheelchair and killing him by releasing a screwdriver into his abdomen.
Killed Victims[]
- Officer Conrow (1st Time) - Stabbed at least 2x in chest.
- Lori Spengler (1st Time) - Stabbed in gut w/ knife.
- Tree Gelbman - Fell to death from hospital roof. (Caused)
- Lori Spengler (3rd Time) - Reported as killed in hospital.
- Carter Davis - Reported as killed in hospital.
- Officer Conrow (2nd Time) - Reported as killed in hospital.
- Stephanie Butler - Shot in the chest.
Behind the Scenes[]
- At one point, the writers had intended to make Gregory and Lori both the killers. However, they eventually decided to use only Lori. The idea of Gregory as one of the killers would later be recycled for his second dimension counterpart in the sequel.