Final answer:
The character represented by Omni-Enhanced Heatblast is Ben Tennyson, who can transform into various aliens, including Heatblast, in the Ben 10 cartoon series.
Step-by-step explanation:
The character represented by Omni-Enhanced Heatblast is Ben Tennyson. In the popular cartoon series Ben 10, Ben is able to transform into various aliens with different powers, and Heatblast is one of these alien forms. When Heatblast is Omni-Enhanced, he gains additional powers and abilities, making him even more powerful.