Seiji Takaiwa is a Japanese stunt performer and suit actor from Saitama Prefecture affiliated with Japan Action Enterprises. He is married to retired stunt performer and suit actor Rie Murakami. He has been cast in many leading roles in the Super Sentai and Kamen Rider series, portraying a diverse range of characters. He has been the suit actor of 17 out of the 19 lead Heisei Kamen Riders. Because of his many lead roles in the series, fans have dubbed him "Mr. Kamen Rider".

KNOWN FOR

Kamen Rider
2002
Absolute Zero
2020
No. 1 Sentai Gozyuger
2025
Mahou Sentai Magiranger
2005
Ninja Sentai Kakuranger
1994
Seijuu Sentai Gingaman
1998
Special Rescue Exceedraft
1992
Kamen Rider Zi-O
2018
Gosei Sentai Dairanger
1993
Special Investigation Robo Janperson
1993
Hikonin Sentai Akibaranger
2013
Juukou B-Fighter
1995

FILMOGRAPHY

All
Movies
TV
Acting
41
Crew
31
2026
Agito: Superpower War
as Police Chief
2026
The Living Dragon
2026
Kamen Rider Kabuto 20th: ​​The One Who Inherits the Heavens
· unreleased
2025
Shogun's Ninja
as Munenori Yagyu
2025
Tatsujin Warriors
2025
No. 1 Sentai Gozyuger
as Shinya Bando / Universe Lupin Red
2024
Good Morning, Sleeping Lion 2
as Kazuma Kujo
2024
Ninja Sentai Kakuranger: Act Three - Middle-Aged Struggles
as Jagoemon
2024
Kamen Rider 555 20th: Paradise Regained
as Ramen Shop Regular Customer
2024
What If My Girlfriend Was a Yokai Hunter... （That's a Wrap)
as Katsuragi Hisa
2024
Kamen Rider: Reiwa's Gorgeous Sports Day
as Commentary
2023
What If My Girlfriend Was a Yokai Hunter... （Second Helping)
as Katsuragi Hisa
2022
Good Morning, Sleeping Lion
as Kazuma Kujo
2022
Kamen Rider Revice the Movie Spin-Off: Birth of Chimera
as Akinari Otani
2022
HE -LOW THE FINAL
2020
Absolute Zero
as 里谷 隆一
2020
Gourmet Detective Goro Akechi
as Prime Minister's Security Police
2017
Kamen Rider Ghost RE:BIRTH - Kamen Rider Specter
as Gyro
2017
Kamen Rider Ghost: Final Stage
as Gyro
2016
Kamen Rider
as Gyro
2015
Kamen Rider
as Guard
2014
Heisei Rider vs. Showa Rider: Kamen Rider Wars feat. Super Sentai
as Worker
2013
Hikonin Sentai Akibaranger
as Himself
2010
Kamen Rider
as Transport Driver
2009
Kamen Rider Decade: All Riders Super Spin-off
as Himself
2008
Kamen Rider Kiva: King of the Castle in the Demon World
as Policeman
2007
Momotaros' Summer Vacation
as Momotaros (suit actor)
2006
Kamen Rider
as Police
2003
Kamen Rider
as Smart Brain Scientist
2002
Kamen Rider Ryuki Hyper Battle Video: Ryuki vs. Kamen Rider Agito
as Kamen Rider Agito (voice)
2002
Kamen Rider
as Black suit Man
2001
Kamen Rider Agito Special: A New Transformation
as Kamen Rider Agito (Suit Actor)
1998
Seijuu Sentai Gingaman
as Hiroshi
1996
B-Fighter Kabuto
as Julio Rivera
1995
Juukou B-Fighter
as Shadow (episode 29)
1993
Tokusou Robo Janperson the Movie: Mother is Eternal! The Electric Brain’s Love and Passion on the Operating Table
as Neo Guild Killer Robot
1993
Gosei Sentai Dairanger
as Boxer
1993
Special Investigation Robo Janperson
as Guild Combat Robot
1993
Special Investigation Robo Janperson
as Jeff Gondo's man
1992
Special Rescue Exceedraft
as Jewelry Burglar
1990
Lady Battle Cop