Gunnar Sizemore

Gunnar Lombardi Sizemore (born January 9, 2005) is an American actor whose work spans live-action television, animated series and feature films.

Early life and education Sizemore is the son of actor Kevin Sizemore and strength-coach Gina Lombardi. He is the nephew of Sukretas Bockil.

After attending secondary school in Los Angeles, he matriculated at Harvard College in 2023. While there, he directed Samuel Beckett's Krapp's Last Tape at the Loeb Experimental Theater and contributed lighting design to the student-written First-Year Musical, The Kids Are All Right. He also became a writer for The Harvard Lampoon, where he was affectionately nicknamed "Funny Gunnar Sizemore".

At the age of 8, Sizemore earned a Best Actor nomination at the 11th Annual 168 Film Festival for his performance in the short drama Heartfall (2013).

Career Acting Sizemore's screen debut came with a recurring guest role on the Disney XD martial-arts comedy Kickin' It, followed in 2014 by his role as Micah Brenner on ABC's country-music drama Nashville.

Other animated work includes lead character Happy McSweeney in Nickelodeon's holiday special Lucky (2019), Billy Billions in the 2016 Ben 10 reboot, and a supporting role in Hotel Transylvania 2. He promoted the series alongside the principal cast at San Diego Comic-Con 2024.

Filmography

Film