Vito Corleone (The Godfather Part II)

If Vito Corleone in 'The Godfather Part II' isn’t topping your list of De Niro’s best, then you must be watching a different movie, my friend. This is De Niro at his prime—subtle, chilling, somehow making you root for a mob boss with a tenderness for cannoli over casualties. Fans get so obsessed, they start mistrusting anyone who offers them an orange! It's like, can you enjoy a fruit without triggering a cinematic PTSD? Pick Vito, because really, who else mastered the art of whispering threats with a smile?