Complex sentence: As of 2011 Gavankar has become a series regular in HBO's "True Blood" as a public school teacher and shapeshifter, Luna Garza, who gets romantically involved with one of the main characters of the series.
Split into simpler sentences: As of 2011 Gavankar has become a series regular in HBO's "True Blood". She plays a public school teacher and shapeshifter named Luna Garza, who gets romantically involved with one of the main characters of the series.