[3] His mother, Merry, is a real estate agent, and his father, Michael, is a nuclear power plant engineer.

[9][10] Teller spent his early years in Pennsylvania and Delaware[11] before his family moved to Citrus County, Florida, at age twelve.

[4] Growing up, he was involved with acting, was president of his high school's drama club, and played alto saxophone, drums, piano and guitar.

After graduating from Tisch School of the Arts in 2009,[16] he made his major film debut in Rabbit Hole (2010), after Nicole Kidman handpicked him for the role.

[26] Teller received further recognition for playing Peter Hayes in Divergent (2014), and the film's sequels, Insurgent (2015) and Allegiant (2016).

He was initially hesitant to accept the role, as he was wary of the potential success and attention he would receive from starring in a major film alongside Tom Cruise.

"[38] Teller made his hosting debut on the opener of the 48th season of Saturday Night Live in 2022,[39] and during the Super Bowl LVII telecast in 2023, Teller, his wife, and their dog starred in a commercial for Bud Light in which they pass the time while waiting for a customer service representative to speak to them, dancing to the on-hold music.

[41] They were engaged at the Molori Safari Lodge in the Madikwe Game Reserve, South Africa, on August 20, 2017,[42] and were married on September 1, 2019, in Maui, Hawaii.