"The Walking Dead" has cast its latest actress to join the AMC show. Christian Serratos, known for her "Twilight" role, Angela Weber, will be joining season 4 of the hit AMC series as the tough and beautiful Rosita Espinosa. In the comics, Rosita makes her debut in Issue 53 alongside Abraham and Eugene, fellow survivors of the mysterious zombie apocalypse that has taken over the planet. She's in a relationship with Abraham, and she's the object of Eugene's desires.

Serratos is set to recur in Season 4 with an option to become a regular in Season 5. No word yet on whether the characters of Eugene and Abraham will also be introduced next season, but MTV pointed out that there are a few holes with the timing of Rosita's appearance. In the comics, she doesn't show up until after a major series of catastrophic events that mostly haven't occurred on the show just yet. They question if this means mass-tragedy and upheaval is on the way sooner than anticipated, or if Rosita will be folded into the series ahead of her comic book counterpart.

Joining the show as a regular in the new season is "The Wire's" Larry Gilliard Jr., who has been tapped to play Bob Stookey, "a former Army medic who is deeply haunted by his past -- both before and after the apocalypse." Returning stars who have been promoted to series regulars include Chad Coleman (a fellow "Wire" veteran), Sonequa Martin-Green and Emily Kinney.

Serratos, born Christian Marie Bernardi, is a Southern California native. She will celebrate her 23rd birthday at the end of this week. Growing up, she studied dance and ice-skating. Her resume includes time as a Ford model. She has been a teen TV staple, playing roles in several Nickelodeon series as well as "7th Heaven," "Hannah Montana" and "The Secret Life of the American Teenager." The actress also has a single episode of "American Horror Story" under her belt. She is scheduled to be in the upcoming features "7500" and "Broken Doll."

"The Walking Dead"'s season four premieres Sunday, October 13 at 9 p.m. ET on AMC.