Walker's Lindsey Morgan to exit as the female lead during Season 2

Deadline

Morgan cited "personal reasons" for deciding to leave her role as Micki Ramirez, the Texas Rangers partner of Jared Padalecki's Cordell Walker. A date for her final appearance has yet to be determined. Walker returned for Season 2 last night. Morgan could potentially return as a guest-star in the future. “After much thoughtful consideration and introspection, I have made the incredibly difficult decision to step away from my role as Micki Ramirez on Walker for personal reasons, and I am eternally grateful to have the support of the producers, CBS Studios and The CW in allowing me to do so,” Morgan, a veteran of The CW's The 100, said in a statement. “The opportunity to play Micki has truly been a blessing as has working alongside the incredible cast and crew of this terrific series. Please know that I will continue to root for my TV family and wish them all the best.”