James Earl Jones was not a voice actor in The Lion King.
James Earl Jones . He is also known for his voice roles as Darth Vader in the Star Wars film series and Mufasa in Disney 's The Lion King as well as many other film , stage , and television roles . The Lion King . The film features an ensemble voice cast that includes Matthew Broderick , James Earl Jones , Jeremy Irons , Jonathan Taylor Thomas , Moira Kelly , Nathan Lane , Ernie Sabella , Rowan Atkinson , Robert Guillaume , Madge Sinclair , Whoopi Goldberg , Cheech Marin , and Jim Cummings .