Who played David Rose in 'Schitt's Creek'?

In which TV series is Elliot Alderson a main character? Who played Moira Rose in 'Schitt's Creek'? In which TV series is Moira Rose a main character? Who played Johnny Rose in 'Schitt's Creek'? Who played Alexis Rose in 'Schitt's Creek'? In which TV series is Eleven a main character? Who played Joyce Byers in 'Stranger Things'? Who played Steve Harrington in 'Stranger Things'?