Ralph Ichijouji
(Ichijouji Ralph)
Appears in:Digimon Adventure 02
First appearance Digimon Adventure 02 third movie (Nightwatcher)
Last appearance ongoing
Voice actor(s):(Ja:) Junko Takeuchi
(En:) Nolan North
Trait(s):Darkness (優しさ Ankoku?)
Age (Ja:) 11
(En:) 15
Grade (Ja:) 5th
(En:) 7th
Gender Male
Known relatives Unnamed Mother and Father
Sam Ichijouji (Older Brother)
Ken Ichijouji
Nationality Japanese
Occupation Police Officer
Aliases Nightwatcher
Ralph Ichijouji (一乗寺 賢 Ichijōji Ralph?) is a fictional character in the Digimon Adventure 02 anime series.

At first, the Nightwatcher is growing increasingly frustrated and violent, has become a masked vigilante, going to the surface at night and fighting crime in very brutal fashions. Ralph saw his love interest Sora Takenouchi kisses Matt Ishida so he gets angry and confronts him in his Nightwatcher disguise, and toys with Raphael who, using the manriki, is not a match for Ken, Davis and Matt. Matt knocks off his helmet with an uppercut and then, seeing its Ralph, starts to lecture him. He is going to be so lonely and missed Sora.