The cast of the upcoming Riverdale spin-off, Chilling Adventures of Sabrina, is finally coming together with the addition of Sabrina's best friend, Rosalind Walker.

As revealed by Hollywood Reporter, Jaz Sinclair of The Vampire Diaries fame has joined the series opposite Kiernan Shipky, who will play the titular role. Walker is the "brash, empowered and outspoken daughter" of Greendale's minister, and is best friends with Sabrina at Baxter High.

RELATED: Chilling Adventures of Sabrina: Kiernan Shipka Cast as Sabrina

Chilling Adventures of Sabrina has been picked up for two seasons by Netflix. The series will explore the origins and subsequent adventures of Sabrina the Teenage Witch, using the Archie Comics series as inspiration. The series is said to be a dark, horror-style spin-off of the hit show Riverdale.

Sinclair definitely fits the bill as per the character description that surfaced recently. Check it out below.

RELATED: Chilling Adventures of Sabrina Casting Harvey, Madame Satan

“[ROSALIND]Female, legal 18 or 18+ to play 16, African American. Rosalind is Sabrina’s human best friend. Brash, empowered, and outspoken like her Black Panther parents, Rosalind is keeping a secret from Sabrina and the rest of her classmates—that she is not-so-slowly losing her eyesight, a fact that will put her immortal soul in jeopardy…10/13 SERIES REGULAR”

The Chilling Adventures of Sabrina has a two-season, 20-episode order from Netflix.