Walker is a hybrid linebacker/edge rusher with explosive burst, pass-rush skills, and playmaking ability. He thrives in an attacking role, where he can blitz, set the edge, and disrupt plays in the backfield. Though he has positional flexibility, his best fit is as a SAM linebacker in a 3-4 defense or an off-ball linebacker in a multiple-front scheme. His coverage ability is limited, making him more valuable as a situational pass rusher and early-down enforcer.