I think they're one in the same people.
No, Jack Haley played the Tin Man in 'The Wizard of Oz", Jackie Earle Haley plays on the tv show 'Human Target".
Jackie Earle Haley and Jack Haley are not the same person but they are related. Jackie is the grandson of Jack Haley who was the Tin Man.
Why do people awswer questions or otherwise make comments when they have no idea what they are talking about.