Importance of Niacin. Niacin is used by your body in a variety of ways. One main area is in the production of energy for your cells. Niacin helps your body convert the foods you eat into energy for your tissues and organs. Niacin is also used in digestion and nervous system function, and it keeps your skin healthy.
Cast. 1  Jeremy Sisto as Aaron Miller. 2  Kate Ashfield as Beth Miller. 3  Ryan Simpkins as Marley Miller. 4  Ty Simpkins as Max Miller. 5  Eric Michael Cole as Hangman. 6  Amy Smart as Melissa. 7  Ross Partridge.
Alan Rickman as Severus Snape. Rickman was a natural fit for the role, because he plays arrogance extremely well. E.g., Die Hard, Something The Lord Made, Galaxy Quest. (If you haven't seen Something The Lord Made, you're really missing something.) But Snape is the only truly ambiguous character in the films.