The 6-foot-1, 210-pounder has started 21 career games and has an interception and two fumble recoveries.
The Panthers needed depth there, after recent injuries to starter Dane Jackson which is expected to keep him out of the start of the regular season. They also recently lost Lamar Jackson to a knee injury.
Barrett was the team’s seventh-round pick this year out of Michigan. Seahawks special teams coach Jay Harbaugh was at Michigan last year, so he’s familiar with Barrett’s work.