I think Toshiro is most famous for "Seven Samurai".... as you know one of the top rated films of all time. Hard for younger people to watch these days but when you watch Seven Samurai you're seeing film making innovation that continues to influence films today.
The Magnificent Seven is entirely based on "Seven Samurai".
When I majored in Dramatic Arts in College I lost count of how many times I watched Seven Samurai for various classes. A lot of "See this in this modern film? Well it started here in Seven Samurai". - JamesJM