Maternal grandfather is Edward Packard, creator of the 'Choose Your Own Adventure' book concept and author of more than 50 titles in the series.
Graduated with a Bachelor of Fine Arts in drama from the Juilliard School, a private performing arts conservatory in New York City, in 2016.
Both parents are lawyers. His father, John Corenswet, had also been a stage actor.
His relatively rare surname is of Russian Jewish origin. His father's family were Russian Jewish/German Jewish immigrants to New Orleans, Louisiana, where his father was born and raised.
Appeared in several professional theater productions in Philadelphia, Pennsylvania, as a child actor.
He did an interview with Entertainment Weekly in 2019 saying that his dream role would Superman. 4 years later, he was cast as Superman for Superman: Legacy.
Rarely discusses his personal life & is very private. It is known that he did get married in March of 2023 in New Orleans. His wife is also an actor and the couple are currently living in Philadelphia.