Walker gets a new partner: Ashley Reyes

Deadline

The How I Met Your Father and American Gods vet will succeed Lindsay Morgan as the new character Cassie, who makes her debut in next week's episode. Cassie is described as a "spirited, uncensored, strong Texas Ranger based in Dallas who served as a Texas state trooper for 8 years before that, Cassie is unconventional and wily, quick on her feet."