In which TV series is Ron Swanson a main character?

Who played Sookie Stackhouse in 'True Blood'? In which TV series is Sookie Stackhouse a main character? Who played Patrick Jane in 'The Mentalist'? Who played Ron Swanson in 'Parks and Recreation'? Who played April Ludgate in 'Parks and Recreation'? Who played Andy Dwyer in 'Parks and Recreation'? Who played Tom Haverford in 'Parks and Recreation'? In which TV series is Tom Haverford a main character?