[3][4] Cornett started his acting career in the television series Nightmare U, where he played the role of Daniel.

[8] He is known for his recurring guest star role as Zach Barnes in the comedy television series Bella and the Bulldogs, for which he earned a 2016 Young Artist Award for Best Performance in a TV Series - Recurring Young Actor.

[9][10] Recently, he shared the big screen with Natasha Henstridge in the feature film, Inconceivable, where he played the role of Zach.

In 2018, Cornett starred in the film Alex & Me, which was released on June 12, 2018, in which he played Logan Willis.

[11] In 2022, Cornett plays the role of A-Lan in the sci-fi musical film Zombies 3,[12] which was released on July 15, 2022.