Who played Theo Huxtable in 'The Cosby Show'?

Who played Rico Tubbs in 'Miami Vice'? In which TV series is Rico Tubbs a main character? Who played Clair Huxtable in 'The Cosby Show'? In which TV series is Clair Huxtable a main character? In which TV series is Jessica Fletcher a main character? Who played Dorothy Zbornak in 'The Golden Girls'? In which TV series is Dorothy Zbornak a main character? Who played Rose Nylund in 'The Golden Girls'?