Who played John Coffey in 'The Green Mile'?

Who played Captain John Miller in 'Saving Private Ryan'? In which film is Captain John Miller a character? Who played Paul Edgecomb in 'The Green Mile'? In which film is Paul Edgecomb a character? In which film is John Coffey a character? Who played Jim Lovell in 'Apollo 13'? In which film is Jim Lovell a character? Who played Gordon Gekko in 'Wall Street'?