Thunderblast

Thunderblast is obsessed with power. She craves it, but rather than directly attaining it herself, she instead seeks to gain power by latching onto a male Decepticon who has it. She forms an instant infatuation with the strongest Decepticon she can find... but as soon as the power structure shifts, so does the focus of her affections. She is usually seen clinging all lovey-dovey to Megatron, ignoring the fact that he has no interest in her whatsoever beyond her ability to follow orders and destroy Autobots (and be used as a disposable pawn if necessary).

Though she's fickle and flighty (and greedy and selfish and opportunistic and vain and overconfident and...) she's notstupid. She knows how to use her wiles to get what she wants and is always looking for suckers to manipulate to her advantage. She knows Autobots are generally reluctant to shoot at a female (especially one as pretty as she thinksshe is) and uses that to her advantage as long as she can... at least, long enough to give them a face full of missiles. She's an effective warrior as most are on land but when it comes to aquatic combat, few can match her skill.

In Ultima, Thunderblast's appearance has been remolded to look something like an evil looking magical robot girl. Despite this, she's still a cruel, and bloodthirsty Decepticon on the inside.