After going unselected in the 2022 NFL Draft, Thomas was signed by the Chicago Bears as an undrafted free agent.[1] He was released on August 30, during the final roster cuts,[2] and was signed to the practice squad the next day.[3] Thomas was elevated to the active roster on November 29,[4] and made his NFL debut on December 4 against the Green Bay Packers, recording one tackle while appearing on 13 snaps.[5]
On August 30, 2023, Thomas was waived by the Bears and re-signed to the practice squad.[6] He was released on October 29.[7]