Artemis is the companion to the leader of the Guardian Senshi—he trained Minako Aino as Sailor V and continues to support her when she assumes her role as Sailor Venus. His memories of the Silver Millennium appear more intact compared to Luna's; in fact, before appearing in the Sailor Moon series, he guides her through the Sailor V video game at the arcade. Later, he provides details about her true mission.
Artemis has a more laid-back personality than Luna and shares a "big brother" type of relationship with Minako, though his attraction to her is occasionally hinted at. He also deeply cares for Luna, often comforting her during distress and expressing his admiration for her. Additionally, he is a loving father to Diana, as shown by her affection towards him.
In the manga and live-action series, Artemis has green eyes, while in the anime, his eyes are blue. He doesn't seem bothered by being named after a female goddess, even when teased about it by Minako. In the European Portuguese and Hungarian versions, Artemis is portrayed as a female cat.
(Source: Wikipedia)
