In other news...
Rose McGowan (Charmed) was cast as a Young Cora, having her first appearance in 2.16 The Miller's Daughter
Rena Sofer (Heroes) was cast as Snow White's mother, probably also for the same episode.
Sonequa Martin-Green (The Walking Dead) was cast as a mysterious role we have yet to learn more details about.
Ethan Embry is going to portray a new Stranger that's going to hit the town Storybrooke, beginning with upcoming episode 2.11 The Outsider
Next episode titles are as follows:
2.11 The Outsider
2.12 In The Name Of The Brother
2.13 Tiny
2.14 Manhattan
2.15 The Queen Is Dead
2.16 The Miller's Daughter