FYI http://www.deadline.com/2014/06/yael-stone-upped-to-regular-orange-is-the-new-black-jonathan-adams-last-man-standing/
http://www.buzzfeed.com/emilyorley/the-breakout-villain-of-orange-is-the-new-black-season-2
http://www.slate.com/blogs/outward/2014/06/13/orange_is_the_new_black_lesbian_sex_video.html
http://popwatch.ew.com/2014/06/13/orange-is-the-new-black-costume/
So the only major players on the show that haven't been upped to series regulars are Lea DeLaria, Laverne Cox, Elizabeth Garcia (Daya's mom) and Beth Fowler (Nurse Ingalls). I hope all of them are added in the coming days.