The ensemble cast complements the design. DiCaprio channels vulnerability and obsession; Cotillard haunts with heartbreaking ambiguity; Michael Caine provides steadiness as the moral elder; Joseph Gordon-Levitt and Ellen Page inject wit and moral clarity when the plot’s machinery feels abstruse. Each performer is integrated into the heist dynamics while also serving thematic function — whether as foil, conscience, or facet of Cobb’s psyche.