which American comedy-drama television series, was Paul Michael regular guest star on 
Paul Michael:  He was a regular guest star on American television appearing in "Kojak", "Hill Street Blues", "Alias", "Gilmore Girls" and "Frasier". Gilmore Girls: Gilmore Girls is an American comedy-drama television series, created by Amy Sherman-Palladino and starring Lauren Graham and Alexis Bledel.
Gilmore Girls