Scorponok (Beast Wars)

Scorponok's personality seems to have two main features: He's often dumb, and he's always loyal to Megatron (surprisingly so, considering Megatron's other crew members), and of those two features, only the loyalty seems to be consistent. He tries to serve Megatron to the best of his abilities, but when Waspinator is able to outwit you, there's only so much you have to offer. Scorponok serves as Megatron's newly promoted second-in-command on the Darksyde after Dinobot's defection to the Maximals, though he is insecure about the title and constantly tries to assert himself among the other Predacons who, aware of his shortcomings, generally dismiss or ignore him. Scorponok's only other real contribution to Megatron's cause is in developing cyber-viruses that he delivers with his cyberbee drone. (This is impressive, actually, given his otherwise limited mentality.) However, these generally don't work out as he hoped, and so they've done little to increase his standing in the eyes of the other Predacons.