'The Fall Guy's' Hollywood premiere included multiple wild stunts, fire and a special appearance by Ryan Gosling & Mikey Day as Beavis and Butt-Head. Gosling, who stars in 'The Fall Guy,' initially walked the red carpet in a mint-green Gucci suit and took photos with his co-star, Emily Blunt. He later returned looking a bit different. Gosling and Day posed for photos as live-action depictions of Beavis and Butt-Head, the main characters from the hit '90s adult animated series.