Deception plays a significant role in Light Yagami's interactions with other characters in the anime "Death Note." Light uses deception as a key strategy to manipulate and outwit his opponents, particularly as he takes on the persona of Kira and tries to maintain his secret identity as the owner of the Death Note. Through deception, Light is able to control the narrative, mislead his adversaries, and further his own agenda in the pursuit of achieving his vision of a utopian society controlled by him.