In which TV series is Miranda Hobbes a main character?

Who played Jack McFarland in 'Will & Grace'? Who played Samantha Jones in 'Sex and the City'? In which TV series is Samantha Jones a main character? Who played Miranda Hobbes in 'Sex and the City'? Who played Charlotte York in 'Sex and the City'? In which TV series is Charlotte York a main character? Who played Eric Forman in 'That '70s Show'? In which TV series is Eric Forman a main character?