Ryusei Onishi

Biography

Onishi Ryusei (大西流星) is a Japanese actor and singer under STARTO Entertainment as a member of the group Naniwa Danshi.

Known For

My Happy Marriage

Diary of a Surgical Resident: Madoka

Younger Boyfriend

Captivated, by You

Rental a Girlfriend

Rokuhoudou Colorful Days

Nomen Kenji

Men's Kō

All Movies (11)

• COUNTDOWN CONCERT 2025-2026 STARTO to MOVE2026 · as Self (Naniwa Danshi)
• Naniwa Danshi LIVE TOUR 2024 '+Alpha'2025
• Nintama Rantarō: Invincible Master of the Dokutake Ninja2024
• We Don't Know Love Yet2024 · as Eiji Aihara
• We Are! Let's get the party STARTO!!2024 · as Self
• Naniwa Danshi LIVE TOUR 2023 'POPMALL'2024 · as Self
• Naniwa Danshi Debut Tour 2022 1st Love2023 · as Himself
• My Happy Marriage2023 · as Takaihito
• The Good Father2022
• Naniwa Danshi First Arena Tour 2021 #NaniwaDanshishikakatan2022 · as Self
• Ninjani Calling on! Fight Towards the Future2014 · as Young Futo

All TV Shows (12)

• Yokohama Neighbors2026 · as 'Ron' Ryuichi Koyanagi
• Nomen Kenji2025 · as Maeda Takumi
• Diary of a Surgical Resident: Madoka2025 · as Sho Igarashi
• Naniwa Kara Ae! Kaze Fukukasemasu!2024
• Beni Sasu Life2023 · as Hojo Masato
• Rental a Girlfriend2022 · as Kazuya Kinoshita
• Rokuhoudou Colorful Days2022 · as Nakao Tsubaki
• Naniwa Danshi’s Journey 1100 Days Till Debut2021
• Captivated, by You2021 · as Hayashi Miyoshi
• Men's Kō2020 · as Momoi Ten
• Quiz! The Iwakan2020
• Younger Boyfriend2020