Rose color: Green
Sword: Sword of Dios, Katana
(Anime) Drive to Duel: To find "something eternal," to claim Anthy as his Rose Bride, and to finally defeat Touga
Vice-president of the Student Council and captain of the kendo team, and is the first duelist Utena fights. He is temperamental, egotistic, prone to angry rages, often cruel, and extremely possessive of Anthy. His belief that they are destined to be together no matter what drive him to be physically violent towards her and continue to pursue her even after their engagement is broken.
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, setting off a chain of events in the Black Rose Arc. He also tries unsuccessfully to covertly continue his relationship with Anthy through an "exchange diary." 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 delusionally egotistical towards the end. He is also more blatantly abusive of the Rose Bride, treating her like a tool, and his love for her is never touched upon. His relationship with Touga is non-existent.