Who played Louise Banks in 'Arrival'?

Who played Louis Bloom in 'Nightcrawler'? In which film is Louis Bloom a character? Who played Ryan Stone in 'Gravity'? In which film is Ryan Stone a character? In which film is Louise Banks a character? Who played Joel Barish in 'Eternal Sunshine of the Spotless Mind'? In which film is Joel Barish a character? Who played Clementine Kruczynski in 'Eternal Sunshine of the Spotless Mind'?