The character Rosita is played by actress Christian Serratos.
She is an American actress who is best known for her roles in Twilight, The Walking Dead, and Netflix's Selena: The Series.
She has been playing the role of Rosita since 2014, and has quickly become a fan favorite. Her character is a strong, independent woman who is determined to survive and protect her group, no matter the cost.
She has been a key part of the show ever since her introduction, and continues to be a fan favorite.