Paul Newman voices Doc Hudson in Pixar's Cars.
Newman was an acclaimed American actor and racing enthusiast, making his casting especially fitting for the veteran Hudson Hornet. Doc's character is a retired racing champion who secretly won three Piston Cups before settling in Radiator Springs.
Cars was one of Newman's final major film performances. His connection to motorsport extended beyond acting: he competed as a driver and co-owned racing teams. The film uses Doc's past to connect the fictional world of talking vehicles with real stock-car racing history.
A common mix-up is confusing Newman's voice role with real NASCAR personalities heard elsewhere in the film. Richard Petty voices The King, while Dale Earnhardt Jr. voices Junior, but Doc Hudson is Newman.