|Zodiac sign||Virgo Sun, Aquarius Moon, Gemini Ascendant|
Vice-president of the Student Council and captain of the kendo team. He is temperamental, egotistic, prone to angry rages, and often cruel. His lack of self-control stems from insecurity and a lifelong rivalry against Touga from which he is always at the losing end. He is obsessed with Anthy because he views the Rose Bride as a mindless doll who will never disobey him, and thus be with him forever. His Dueling Rose is green.
He and Touga practice kendo together, but Saionji is clearly very resentful of Touga, and especially cannot bear to be humiliated by him (a fact which Touga shamelessly exploits). Saionji is less perceptive, intelligent, and skilled as Touga, and despite his best efforts can never seem to best him. He is regardless affected by this estrangement from his childhood friend.
Though he stays for a short time with Wakaba Shinohara (whose crush on him and subsequent rejection were the catalyst for Utena's first duel) after being expelled from school, his obsession with Anthy ultimately draws him back. Near the end of the series Saionji and Touga uncover parts of their shared past and seemingly reconcile their relationship by the end of the series.
In the movie, Saionji has a fairly small part. His personality is exaggerated on the negative side, making him appear almost psychotically angry in the beginning and delusively egotistical towards the end. He is also more blatantly abusive of the Rose Bride and his love for her is never touched upon. His relationship with Touga is non-existent.