Tak's personality is eminently clear. She quickly establishes herself as cunning, ruthless, and deeply vindictive. Tak has access to an arsenal of advanced technology, which she seems to prefer over more simplistic methods. This may allude to an interest in tech, and it's possibly an unrecognized or un-utilized talent in the field. Because she was only featured in a single episode, the finer points of her personality and interests were never given attention. However, it's still abundantly obvious that she has what it takes to be an exceptionally successful Invader. While not arrogant, she appears to be acutely aware of how her talents are being squandered, and resents this. She sought to redeem herself by usurping Zim's mission, reducing the Earth to a hollow shell, pumping out all its magma, and filling it with snacks instead, hoping to appeal directly to the Tallest's taste for sweets. Given Tallest Purple's disappointment with the plan's failure, this idea may not have been without

Zim is considered overzealous even by their standards: Brash, arrogant, and overconfident, Zim's tendency to cause wanton destruction makes him a danger to himself and his own people, yet he still considers himself a mighty Irken warrior. In addition, he is acutely narcissistic and megalomaniacal, congratulating himself on even the smallest of successes; these, however, are few and far between. Despite his self-proclaimed greatness, Zim rarely succeeds in his attempts and is held up as a complete laughingstock, a scapegoat, or a figure of contempt by his own species, a fact that he is either oblivious to or simply chooses not to notice; this is hinted at by the fact that due to his self-absorbed nature, it prevents Zim from seeing his failures, past and present. He claims to be proud of all the past disasters he has caused, and rarely acknowledges his defeats in his present mission on Earth (often blaming them on other characters, or other factors, or completely changing the subject).