James Dean vs James Byron Dean

James Dean and James Byron Dean both are nouns.

Word	Noun	Adjective	Verb	Adverb
James Dean	Yes	No	No	No
James Byron Dean	Yes	No	No	No

As nouns, James Dean and James Byron Dean are synonyms defined as:

James Dean and James Byron Dean: United States film actor whose moody rebellious roles made him a cult figure (1931-1955)

Other synonyms of James Dean include Dean.

James Dean (noun)	James Byron Dean (noun)
United States film actor whose moody rebellious roles made him a cult figure (1931-1955)	United States film actor whose moody rebellious roles made him a cult figure (1931-1955)