Who played Alonzo Harris in 'Training Day'?

Who played Adrian Cronauer in 'Good Morning, Vietnam'? Who played Agent J in 'Men in Black'? In which film is Agent K a character? Who played Captain Steven Hiller in 'Independence Day'? In which film is Alonzo Harris a character? Who played Chuck Noland in 'Cast Away'? In which film is Chuck Noland a character? Who played Josh Baskin in 'Big'?