In which TV series is Rachel Zane a main character?

Who played Harvey Specter in 'Suits'? In which TV series is Harvey Specter a main character? Who played Mike Ross in 'Suits'? In which TV series is Mike Ross a main character? Who played Olivia Pope in 'Scandal'? Who played Hannah Horvath in 'Girls'? Who played Frank Underwood in 'House of Cards'? Who played Claire Underwood in 'House of Cards'?