Complex sentence: Helen Pai's husband also gave model to another Gilmore Girls character, "Hep Alien's" guitarrist Dave Rygalski, as well as the ficional band "Hep Alien" is an anagram of Helen Pai's name.
Split into simpler sentences: Helen Pai's husband was the model for another Gilmore Girls character, "Hep Alien's" guitarist Dave Rygalski. Additionally, the fictional band "Hep Alien" is an anagram of Helen Pai's name.