Dacre Kayd Montgomery-Harvey (/ˈdeɪkər/; born 22 November 1994)^[1] is an Australian actor. He is known for his roles as Billy Hargrove in the Netflix series Stranger Things (2017–2022), Jason Scott in the 2017 action film Power Rangers, and Steve Binder in the 2022 biographical film Elvis. In 2019, he released a podcast titled "DKMH," which features his own poetry.

Montgomery was born in Perth, Western Australia, to New Zealand-born Scott Montgomery-Harvey and Judith, daughter of Dr Godfrey Barrett-Lennard, professor of psychology at the University of Waterloo, Ontario, Canada and a descendant of the politician Sir Thomas Barrett-Lennard, 1st Baronet via his fifth son, Edward Pomeroy Barrett-Lennard, an early settler in Western Australia.^[2][3] He has one younger sister, Saskia. His parents worked in the screen industry in Australia. Montgomery began performing on screen and in theater at the age of nine.^[4] Montgomery attended Mount Lawley Senior High School in his hometown. When Montgomery was in Year 12, his fellow students voted for him to be "The most likely student to become a Hollywood star" in the annual yearbook. Montgomery continued his studies in the dramatic arts throughout his secondary schooling. Montgomery completed his acting degree at the Western Australian Academy of Performing Arts at Edith Cowan University in 2015.^[5][6] In an Instagram post, Montgomery said that he was a "lost kid." He had a difficult time in school and started to suffer from anxiety at an early age. He claims he was bullied throughout his school years due to his weight and interest in theater. He also failed his drama exams in high school. At the age of 18, he was fired from his job.^[7]

Montgomery's first role came when he appeared in Betrand the Terrible as Fred, in 2010. In 2011, he appeared in a TV Pilot called Family Tree. In 2015, Montgomery appeared in the music video for "Old Souls" by Australian deathcore band Make Them Suffer directed by Jason Eshraghian.^[8]

Montgomery starred as Jason Scott, leader of the Power Rangers, in the Power Rangers feature film reboot. The film was released in 2017.^[9] Montgomery also appeared in Australian music duo Angus & Julia Stone's music video for their song "Chateau". He also appeared in the sequel to the Australian comedy A Few Best Men, titled A Few Less Men.^[10]

In 2017, Montgomery joined the cast for the second season of the Netflix series Stranger Things as character Billy Hargrove.^[11] In 2019, he returned for the role in season 3 and a guest role in season 4 in 2022.

On November 6, 2017, Montgomery was announced to be joining The True History of the Kelly Gang based on the novel of the same name by Peter Carey, alongside Russell Crowe and Nicholas Hoult. However, he does not appear in the final film.^[12]

On October 19, 2022, he was announced to appear in a leading role on 'Went Up the Hill' film co-scripted and directed by Samuel Van Grinsven.^[13]

On July 11, 2019, he released his own podcast titled "DKMH," which features his own poetry. The description of the podcast states that he spent two years compiling his own poetry and getting musicians to help him "bring it to life".^[14]

Montgomery has been in a relationship with model Liv Pollock since 2017.^[15] Pollock announced the pair's engagement on Instagram in December of 2023.^[16]

Montgomery has opened up about having OCD in an Instagram post about an episode of his podcast, stating how it is a condition that both "fuels" and "hinders" him.^[17]