OOO, Den-O, All Riders: Let’s Go Kamen Riders

A present-day rider who teams with Kotaro Nogami to chase time anomalies. He exhibits courage and compassion for Naoki and Mitsuru, and grows through the escalating threat to history. His bond with Ankh and the DenLiner crew anchors the mission across eras.

A pragmatic DenLiner passenger who collaborates with Eiji to preserve history. He acts as a steadying influence, coordinating efforts to recover stolen medals and prevent timeline collapse. His leadership keeps the group focused amid shifting loyalties.

An Imagin whose self-serving schemes spark the initial conflict, yet he forms a complex, evolving alliance with the Riders. His actions set crucial events in motion, including medal exchanges and the creation of the Shocker Greeed. He remains a wily, unpredictable presence throughout the dueling timelines.

A boy pulled into a dangerous time leap, acting as the thread that ties present and past together. His presence motivates the journey across eras, and his fate becomes intertwined with Mitsuru and the other Riders. He catalyzes much of the narrative's urgency.

Naoki's friend whose presence in the present adds emotional stakes to the mission. She and the other young characters become part of the resistance against Shocker's spread. Her role highlights the human cost of the timeline crisis.

A Scout who encounters the DenLiner crew and mistakes them for Shocker agents. Her eventual alignment with the Riders broadens the alliance against the villainous forces. She represents the foothold of ordinary people caught in extraordinary events.

A loyal ally who fights alongside Eiji and Nogami, ultimately making the ultimate sacrifice to ensure Naoki and friends escape. His bravery reinforces the cost of standing up to tyranny. His absence weighs heavily on the team after the pivotal moment.

The formidable mastermind behind Shocker's global plot, driving the Greeed and shaping the war against the Riders. He embodies the dangerous reach of Shocker, pushing the narrative toward a climactic confrontation. His power tests the Riders' resolve and unity.

A fusion-powered incarnation created by Shocker using Core/Cell Medals, presenting a nearly unstoppable threat. The Greeed acts as a central obstacle to the Riders’ plans and a symbol of Shocker's genetic-twisted ambitions. It forces the alliance to improvise under pressure.

The DenLiner's wary proprietor who cautions against altering history while ultimately guiding the crew through perilous time jumps. His quiet leadership helps hold the mission together during chaotic shifts between eras. He embodies the balance between adventure and responsibility.

The elder protector of peace who appears to aid the Riders in moments of crisis, signaling the long legacy of Kamen Rider champions. His presence reinforces the theme of enduring heroism across generations. He steps in at a critical turning point to help reverse the threat.

The second legendary Rider who joins the ensemble to bolster the resistance against Shocker. His arrival marks the broadening of the Rider coalition across time. He contributes to the strategic defense of the group during the climactic battles.