Although he often appears dimwitted, Honey is actually highly intelligent and clever and is able to see that Tamaki, Hikaru, and Kaoru all have feelings for Haruhi. Despite his generally positive nature, he angers easily when awakened from slumber and since his blood type is AB, most of the hosts believe that he has a split personality (i.e. Dark/Nice Honey). As the oldest person in the club, Honey refers to his fellow hosts using the "-chan" honorific. He also serves as a mentor figure for the hosts, especially Kaoru, and is eager to help others find their identity, just as Tamaki helped him find the courage to be his own true self. However, he does not believe in babying people, even Mori, and typically does not offer his advice unless he is approached first. He is adoring of his stuffed bunny, Usa-chan, as it was made just for him by his late grandmother, and he harbors an insatiable appetite for sweets and cake, admitting that he eats three whole cakes for dessert every evening after dinner.

Honey is born under the star sign of Pisces, the Fishes. The positive traits of this sign are imagination, kindness, compassion, intuition, sensitivity, and selflessness; the negative traits being escapism, idealism, a weak will, over-sensitivity, pessimism, and indolence. Since he is born on the 29th of February, leap-day, Honey is considered a "leapling" and only celebrates his actual birthday once every four years, giving these qualities a lesser influence on his personality.