Kalibak is often pitted against Orion, and after numerous clashes they learned that they were half-brothers. This fuels Kalibak's hatred of Orion to new levels, for Darkseid clearly respects Orion over his first-born. Unlike Orion, Kalibak secretly craves the love and respect of his father - something neither he, nor anyone else, can ever hope to attain - and it has been shown that he has a gentle side which is completely submerged under his brutish exterior, and which he consistently and fearfully keeps hidden because on Apokolips, any sign of weakness is subject to the cruelest punishment.