In which TV series is The Ghoul a main character?

Who played Mariko in 'Shōgun'? In which TV series is Mariko a main character? Who played Lucy MacLean in 'Fallout'? Who played The Ghoul in 'Fallout'? Who played Dr. Robby Robinavitch in 'The Pitt'? In which TV series is Dr. Robby Robinavitch a main character? Who played Tanya McQuoid in 'The White Lotus'? Who voices Homer Simpson in 'The Simpsons'?