Tasha "Taystee" Jefferson (Danielle Brooks)
Backstory: Taystee was an orphan for much of her life, but is "adopted" by villainous drug dealer Vee as an adolescent. She's drafted into her surrogate mother's drug ring, which gives her some semblance of a family (including a brother, RJ) — but it also lands her in prison more than once.
Place in Litchfield's hierarchy: Thanks to her bubbly personality, Taystee mostly gets along with the other women at Litchfield — until Vee ends up in Litchfield and starts manipulating her former ward.
Pre-OITNB: Brooks is one of young 'uns in the cast: She graduated from Juilliard in 2011, and Orange is her first series (she’s done theater and a couple of low-budget movies prior to the show).
Best line: "So I'm sitting there, barbecue sauce on my titties, and I'm like, what the fuck? Again?"