This is your assignment but I am willing to help out a bit and you can figure out the rest (and I don't what is needed on the essay)...
James Earl Jones was born on January 17, 1931. He is an American actor. His career has been more than 60 years. He has been described as "one of America's most distinguished and versatile" actors and "one of the greatest actors in American history."
Ever since his Broadway debut in 1957, Jones has won many awards. Some include a Tony Award and Golden Globe Award for his role in The Great White Hope. Jones won three Emmy Awards, including two in the same year in 1991, and he also earned an Academy Award nomination for Best Actor in a Leading Role in the film version of The Great White Hope.
He is also known for the voice roles as Darth Vader in the Star Wars film series and Mufasa in Disney's The Lion King (including other film, stage, and television roles).
Jones has been said to possess "one of the best-known voices in show business, a stirring basso profundo that has lent gravel and gravitas to" his projects, including live-action acting, voice acting, and commercial voice-overs.
As a child Jones had a stutter. In his episode of Biography, he said he overcame the affliction through poetry, public speaking, and acting, although it lasted for several years. A pre-med major in college, he went on to serve in the United States Army during the Korean War before pursuing a career in acting.
There is more if you do a good google search, you can get some good details.
Hope this helps!