 
 <translate> The relevant information is: Jack Nicholson plays Hoffa, and DeVito plays Robert Ciaro, an amalgamation of several Hoffa associates over the years.
So, the final answer is Jack Nicholson. <ibo> Ozi dị mkpa bụ: Jack Nicholson na-egwu Hoffa, na DeVito na-egwu Robert Ciaro, njikọta nke ọtụtụ ndị mmekọ Hoffa kemgbe ọtụtụ afọ. Ya mere, azịza ikpeazụ bụ Jack Nicholson. 