Who played Skyler White in 'Breaking Bad'?

Who played Michael Westen in 'Burn Notice'? Who played Carly Shay in 'iCarly'? Who played Alex Russo in 'Wizards of Waverly Place'? In which TV series is Walter White a main character? In which TV series is Skyler White a main character? Who played Hank Schrader in 'Breaking Bad'? In which TV series is Hank Schrader a main character? Who played Gus Fring in 'Breaking Bad'?