Masaru Nagai

Drama televisi

• Mirai Sentai Timeranger (TV Asahi, 2000 - 2001) - Tatsuya Asami / TimeRed, Ryuya Asami (Diperankan sebagai "永井 マサル")
• My Little Chef (TBS, 2002) - Kotaro Kamihata
• Bijo ka Yajuu (Fuji TV, 2003) - Takeshi Yamamoto
• Marusa!! (Kansai TV / Fuji TV, 2003) - Riki Takabatake
• Tokumei Kakarichou, Tadano Hitoshi (musim pertama) (TV Asahi, 2003) - Koichi Moriwaki
• Hakusen Nagashi "Hakusen Nagashi ~Nijuugo-Sai" (Fuji TV, 6 September 2003) - Pemain tamu
• Yankee Bokou ni Kaeru (TBS, 2003) - Kazuto Okumura
• Suna no Utsuwa (TBS, 2004) - Masaya Yoshimura
• At-home Dad (Kansai TV / Fuji TV, 2004) - Kenji Osawa
• Orange Days (Pemain tamu) (TBS, 2004) - Toru Kakizaki
• Aa Tantei Jimusho (TV Asahi, 2 Juli 2004) - Tsumagi
• Higuchi Ichiyō Monogatari (drama spesial) (TBS, 1 November 2004) - Nakarai Tosui
• Tokumei Kakarichou, Tadano Hitoshi (drama spesial pertama) (TV Asahi, 22 Desember 2004) - Koichi Moriwaki
• Tokumei Kakarichou, Tadano Hitoshi (musim kedua) (TV Asahi, 2005) - Koichi Moriwaki
• Yume de Aimashou (TBS, 2005) - Hajime Maruyama
• Tokumei Kakarichou, Tadano Hitoshi (drama spesial kedua) (TV Asahi, 7 Agustus 2005) - Koichi Moriwaki
• Oniyome Nikki (Kansai TV / Fuji TV, 2005) - Kenji Osawa
• Desuyone (TBS, 2006) - Shinji Kawanoi
• 7-Nin no Onna Bengoshi (TV Asahi, 2006) - Ippei Kitamura
• Matahari Hitam (TV Asahi, 2006) - Atsushi Tachibana
• Tokumei Kakarichou, Tadano Hitoshi (drama spesial ketiga) (TV Asahi, 23 September 2006) - Koichi Moriwaki
• Tokumei Kakarichou, Tadano Hitoshi (musim ketiga) (TV Asahi, 2007) - Koichi Moriwaki
• Agatha Christie no Yokoku Satsujin (NTV, 6 Maret 2007) - Shingo Domoto
• Katagoshi no Koibito (TBS, 2007) - Nobuyuki Murono
• Long Wedding Road! ~Tokyo VS Osaka Wakeari Kon Monogatari~ (TBS, 30 Juli 2007) - Shoichi Azuma
• Tokumei Kakarichou, Tadano Hitoshi (drama spesial ke-4) (TV Asahi, 2 Februari 2008) - Koichi Moriwaki
• Sanjuuman-Nin kara no Kiseki ~Nidome no Happy Birthday~ (TV Tokyo, 26 Maret 2008) - Shushi Kadowaki
• 7-Nin no Onna Bengoshi (TV Asahi, 2008) - Ippei Kitamura
• Salaryman Kintaro (TV Asahi, 2008) - Kintaro Yajima
• Tokumei Kakarichou, Tadano Hitoshi (drama spesial ke-5) (TV Asahi, 3 Januari 2009) - Koichi Moriwaki
• Tokumei Kakarichou, Tadano Hitoshi (musim ke-4) (TV Asahi, 2009) - Koichi Moriwaki
• Buzzer Beat ~Gakeppuchi no Hero~ (Fuji TV, 2009)
• Kishiryu Sentai Ryusoulger (TV Asahi, 2020) - Master Black

DVD / V-Cinema

• Mirai Sentai Timeranger Super Video: All the Strongest Hero Secrets (2000) - Tatsuya Asami / TimeRed (Diperankan sebagai "永井 マサル")
• Mirai Sentai Timeranger vs. Go Go V (Toei, 2001) - Tatsuya Asami / TimeRed (Diperankan sebagai "永井 マサル")

Program Varietas

• Saikyou no Otoko wa Dare da! Souzetsu Kinniku Battle!! Sportsman No.1 Ketteisen (TBS)
• Honnou no High Kick! (Fuji TV)
• Toukon Kinniku (TBS)
• Taiiku Oukoku (Kinniku Banzuke) (TBS)
• Koi suru Hanikami! (TBS) - Pemain tamu
• Shittoko! (MBS / TBS) - Pemain tamu
• Winners (TV Tokyo)
• F-1 Grand Prix (Fuji TV) - Studio Caster
• Coming Doubt (NTV)
• Jun'ai Kajitsu (TV Tokyo)
• Felice (BS-i)
• Miracle Shape (NTV)
• Waratte Iitomo (Fuji TV) - Pemain tamu di Telephone Shocking
• Trivia no Izumi (Fuji TV)
• Kejuaraan Dunia FIBA 2006 (TBS)
• Aa! Hana no Ryouri-Nin (YTV / NTV) - Pemain tamu
• Lucky Number Show (TV Asahi, 28 Desember 2008) - Presenter

Narasi

• Myuujin (TV Tokyo) - Narator (7 Oktober 2007 - 29 Maret 2009)

CM

• Lotte
• Onix

Film

• Shin Karate Baka Ichidai:　Kakutousha
• Guuzen nimo Saiakuna Shounen (2002) - Eiichi Namba
• Tenshi no Kiba B.T.A. (2003)
• saber zenkaiger super hero senki tatsuya asami \ timered
• Tokumei Kakarichou, Tadano Hitoshi: Saigo no Gekijou-Ban (Shochiku, Desember 2008) - Koichi Moriwaki

Lain

CD

• Eternity

Buku

• Masaru Nagai Photo Essay: Garyou Tensei (Bookman-Sha, 2004) ISBN 4-89308-571-9
• Take It Easy!! Masaru Nagai no Rakutore (Bookman-Sha, 2006) ISBN 4-89308-638-3