|~ announcement before fighting|
|~ announcement before the finishing move|
|~ announcement before the end of the fight|
Ken Ashihara is an expert marksman member of NEVER. In Kamen Rider W Forever: A to Z/The Gaia Memories of Fate, he becomes the Trigger Dopant.
He is a young man with knowledge of various firearms. He was a former military firearms expert before he was killed in a gunfight, leaving behind a family. He has a habit of proclaiming "Game start" when beginning combat. Otherwise, he might say "Game over". He fights Kamen Rider Accel on several occasions both in and out of Dopant form (even defeating Terui once, by saying "Time up") before being defeated by Accel Trial's Machine Gun Spike Maximum Drive. Ken got the Trigger Memory and plugged to his hand just like the Gene Dopant. He defeated Terui with Trigger Buster move and ran off and proclaimed "Time up".
The Fateful Sengoku Movie Battle
to be added Kamen Rider × Kamen Rider Gaim & Wizard: The Fateful Sengoku Movie Battle.
As a member of NEVER, he is an expert marksman of the group, armed with a machine gun.
He used the T2 Trigger Memory to transform into the Trigger Dopant. As Trigger Dopant, he is armed with a large rifle attached to his right arm.
Behind the scenes
Ken Ashihara is portrayed by Masayuki Deai. He previously portrayed Eiji Takaoka/Bouken Silver in GoGo Sentai BoukengerIcon-crosswiki. In Kamen Rider W Returns: Kamen Rider Eternal, Ken said "Good job" with a thumbs up, which is a nod to BoukengersIcon-crosswiki's signification. As the Trigger Dopant, his suit actor is Norihito Itō.