Swoosie Kurtz, who was part of the main cast in Bryan Fuller's "Pushing Daises", appeared in Volume 4: Fugitives. She was introduced briefly in episode 20: "Cold Snap" as "Millie," a wealthy woman and an old friend of Angela Petrelli (Christine Rose). The latest spoilers reveal that her character will return in the third episode(Acceptance) of season 4.

EW's Ask Ausellio mentioned that Heroes was in the look for an actor to play an eleven-year-old Nathan Petrelli. Adrian Pasdar told EW: "I absorb a memory from an article of clothing that sends me back in time to when I was 11. Something happened to young Nathan but old Nathan doesn't remember it. How can that be? It has to do with a character we have met before."

TV Guide's What the Keck? revealed that the character in reference is no other than Millie. A flashback scene will introduce Millie's daughter and reveal a long-buried Petrelli family secret. "In the third episode, a decision Angela made twenty years ago comes back to haunt her," hints Christine Rose of the flashback scene. Adrian Pasdar adds, "An incident occurred when Nathan was a boy that he has no memory of. He has to go and make amends for the crime he committed and the whole thing ends up very poorly."