Harlequin seems to have a carefree attitude to what most think; he can be sadistic and also quite teasing as well. Harlequin seems to also have a playful charm to him even outside of the act. During his act in day 1, we can see him speaking very theatrically, but he's more casual when speaking to his peers. Harlequin seems very comfortable with being seductive and handsy around Valentine, making Pierrot jealous.
Harlequin speaks and acts with a distinct, theatrical style
Love and jealousy
A monster in a circus disguised as a clown
