|Known Users: Sou Yaguruma, Shun Kageyama, Arata Kagami, and Masato Mishima|
|Designation: Kamen Rider TheBee (Masked Form and Rider Form)|
|Weapons: Zecter Needle|
|Gear: TheBee Zecter, Rider Brace|
|Vehicle: Machine Zectron|
The Bee has four known users. TheBee's Masked Form resembles a beehive and has very little offensive capabilities. This is the default form that TheBee transforms into, until the user rotates the TheBee Zecter around its wrist mounting to initiate the Cast Off command. TheBee's Rider Form is the sleeker and more offensive-based form which more resembles a wasp. It is in this form that TheBee has access to the Clock Up command which allows TheBee to travel at near-light speeds to match the speeds of the Worms. By pressing button on TheBee Zecter, the Rider Sting tachyon-powered punch is activated, allowing the user to pierce through a Worm with the stinger on the TheBee Zecter.
Sou Yaguruma was the first TheBee user, leader of the Shadow. When Tendou managed to infiltrate his flawless security team and upstage him by revealing how a Worm had done the same, he challenged Kabuto to a fight. While he managed to defeat Tendou and destroy his belt, he was shocked to learn the belet was repaired. His resulting hatred caused him to disregard the safety of his team in favor of getting revenge against Tendou, which led to the TheBee Zecter rejecting him. After this he was reassigned to another part of the city, he became KickHopper. Despite his renewed vow to protect his team, the TheBee Zecter had chosen Kageyama, making him the new leader of Shadow.
Under Yaguruma's command, Shun Kageyama was injured by Tendou and has had hostility towards Kabuto ever since. He was once a good friend of Yaguruma. Even while injured, he continued to fight the Worms and would protect his commander at all costs. After TheBee Zecter rejected Yaguruma and chose Kagami, he attempted to make Kagami understand his new responsibilities. He was baffled when Kagami rejected TheBee Zecter in favour of his friendship with Tendou. It was then that he was chosen by TheBee and became the next captain of Shadow. Kageyama mainly uses punches as TheBee. One of his first actions as the new leader was a plan to fake the disbanding of Shadow in order to expose a traitor eliminating Shadow members one by one. After eliminating Yaguruma from the suspect list, his former commander attempted to rejoin Shadow, but Kageyama turned him down, coldly telling him that he would bring disharmony to the group.
His next move was to frame Kagami as the traitor in the hopes that the traitor would attempt to shut Kagami up, but this plan failed when Tendou exposed the real traitor. He does not mind sacrificing the life of an "unimportant" ZECT member in order to further the greater cause, which is why Tendou sees Kageyama as unfit to be a leader. He was unpleasant when Tendou became the leader of Shadow. He attacked Kamen Rider Drake and tried to frame Tendou but he found this out and punished him by making do wash the dishes at Bistro la Salle. Mishima makes him pick up Tsurugi Kamishiro, which results in Kageyama being made to sing Happy Birthday to Kamishiro. TheBee, along with Drake, was also under Shun Kageyama when the full body Put On system was first utilized. He is defeated by Yaguruma as KickHopper, and then loses his Zecter, which is obtained by Tendou. He then proceeds to do everything Tendou says in order to get his TheBee Zecter back, but ends up failing. Yaguruma then becomes Kamen Rider PunchHopper. Kageyama faces a change of heart as he returns to the TheBee Zecter and uses it one more time. However, he was defeated by Cassis Worm Gradius, and was afterwards abandoned by the TheBee Zecter. He then returned to being PunchHopper.
Arata Kagami received the TheBee Zecter in episode 9 after it abandoned Yaguruma. Being easily angered, Yaguruma made Tendou's defeat a higher priority than protecting his subordinates. In turn, the TheBee Zecter went to Kagami who was desperate to protect the injured Shadow Troopers. However, Kagami relinquished his role as TheBee because of his respect for Tendou. Kagami later became Kamen Rider Gatack. Masato Mishima temporarily used the TheBee Zecter after Kageyama's transformation canceled in the fight against Formicaalubus Worm Maxilla in episode 16. Despite the Zecter's attempt to reject him, he did a superhuman jump into the air, caught the fleeing Zecter, and forced the transformation. He is the strongest of the TheBee Zecter's wearers, capable of taking out the Formicaalubus Worm with bare punches. After defeating the Worm, the Zecter returns to Kageyama.
In the movie adaptation God Speed Love set in an alternate timeline, Sou Yaguruma appeared as a high-ranking ZECT official in league with Kamen Rider Ketaros and is still the wielder of the TheBee Zecter. He commanded the counterattack against Neo-ZECT and was able to annihilate a majority of the Neotroopers with his ZECT Trooper team. Despite this, he was killed on combat with Kamen Rider Hercus. His last words lamented having received a 'perfect death.'