Grapple is technically an architect, but in his spark he is an artist. On Cybertron, before the war, his buildings were considered great works of art, but now his constructions are limited by the realities and needs of the war effort. It is a situation he often finds stifling. Grapple takes great pride in any work he constructs, and is prone to severe bouts of depression should his "masterworks" be destroyed in the course of combat. Grapple can usually be found hanging out with his close friend Hoist who does his best to cheer Grapple up when his artistic temperament has him down.
His alt-mode is a Mitsubishi Fuso Crane Truck.