Hekapoo is normally laid-back and something of a trickster toward beings she considers to be lesser than herself. As the creator of dimensional scissors, however, she takes her job very seriously and becomes deeply offended when someone steals or abuses them. She also comes off as the most authoritative member of the High Commission, constantly disciplining the immature and rash Rhombulus. Despite this seriousness, she tends to have numerous quirks, such as being irresistibly attracted to masculine men and talking casually and jokingly with people close to her. She can also be somewhat cowardly, preferring to hide from threats such as Meteora Fairywinkle and Mina Loveberry rather than confronting them and suffering the consequences.
In Star vs. the Forces of Evil: The Magic Book of Spells, it is strongly displayed that Hekapoo is deeply prejudiced toward monsters, as not only did she join Solaria as part of the team on massacring monster armies, but she also taught Festivia Cosma to continue the cycle of hatred between fairies and monsters, so obstinate to the degree that she refused to accept Omnitraxus Prime's way of teaching kindness to Festivia. Over the course of the series, however, her opinion seems to change, as it is ultimately her who turns on the Magic High Commission and allows for Timmy and Chloe to save the monster populace.