Mikaela is of Iranian, Italian, and Spanish descent and was born and raised in Colbert, Washington.

[3] She started taking dance classes at the age of two and starred in school plays and appeared in local commercials as a child.

Hoover continued to work with James Gunn and in 2014 she played Nova Prime's Assistant in the Marvel movie Guardians of the Galaxy[5] and Raziya Memarian in The Belko Experiment.

In 2020, she booked several roles in DC's The Suicide Squad,[5] Lionsgate's Guest House and Netflix's Holidate.

Hoover has been cast as Cat Grant in the upcoming DC Studios Superman film by James Gunn.