Early and personal life
Boyce was born in Los Angeles, California, on May 28, 1999. His father is of Afro-Caribbean and African-American descent. His mother is Jewish. His paternal grandmother, Jo Ann (Allen) Boyce, was one of the Clinton Twelve, the first African-Americans to attend an integrated high school in the south, in 1956, as ordered by Brown v. Board of Education.
Boyce lived in the Los Angeles area with his parents and his younger sister, until he moved in with former co-stars Karan Brar and Sophie Reynolds in May 2019. His favorite style of dance was breakdancing, and along with four of his friends, he was a member of the breakdancing crew "X Mob".
In the span of 40 days in 2017, Boyce helped raise over $27,000 for the Thirst Project, which helps bring clean water to underdeveloped countries. He also supported United Way's initiative to end homelessness. He helped raise money for the HomeWalk in 2015, and continued to do so up until the end of his life. In May 2019, he participated in the opening ceremony of the 12th annual HomeWalk in downtown Los Angeles, one of largest public events to end homelessness in the United States. Boyce also worked closely with It's On Us, a social movement created to raise awareness and fight against sexual assault on college campuses for both men and women. His final humanitarian project was called Wielding Peace which was a social media campaign in conjunction with Delaney Tarr, co-founder of March For Our Lives. In Boyce's own words, the campaign would help fight against gun violence by showing celebrities and survivors "wielding" a new kind of weapon — one of unity.