Alter Ego #123 has a special focus on Denny O'Neil's Silver Age career through the mid-1970s, from Marvel (Dr. Strange, S.H.I.E.L.D.) to Charlton (Wander, 'Children of Doom') to DC (Green Lantern/Green Arrow, Batman, The Shadow, Wonder Woman, Superman, JLA), as aided and abetted by the likes of Adams, Kaluta, Sekowsky, Lee, Giordano, Thomas, Schwartz, Aparo, Boyette, Dillin, Swan, Ditko, et al.