Men

Three strong believers in the kid's guilt emerge. First among them is Lee J. Cobb as an arrogant blowhard who believes that anyone who shows mercy to a kid like this is soft in the head and is shirking his duties as a juror and a member of society. Ed Begley (the older Ed Begley, not the goofball with the electric car) plays a reactionary, racist, us-and-them philosopher who refuses to believe that there is anything to a decision like this beyond looking at the kid and sizing him up and knowing he's rotten to the core. Finally, E.G. Marshall is a methodical, somewhat cynical guy whose careful review of the evidence convinces him that guilt beyond a reasonable doubt has genuinely been proved.
The more moderate jurors are the territory over which Fonda and these men originally argue. Joseph Sweeney is a thin elderly man who at least shares Fonda's concern that a discussion is appropriate before a death sentence is handed down. Klugman is a young (really...wait till you see him) kid who ...