|Season:||Kamen Rider Spade Warrior|
|First Appearance:||Episode 22|
|Number of Episode Appearances:||2|
|Joker Undead Rouze Card|
Although called the 53rd existence, there are actually multiple Undeads known as Joker Undead, or simply called the Jokers, much like in a card deck.
If any of them were to win the Battle Fight, it would mark the end of all life on Earth, & the Battle Fight would be reset to begin anew.
- Main article: Dirk Trent
Sometimes referred as the Black Joker, he is the true identity of Dirk Trent. Technically "wins" the Battle Royale at the end of the series when Giraffa is sealed, but Ray's sacrifice allows Dirk to continue living as a human & need not be sealed, with the Spirit Human keeping him in line.
- Main article: Derek Selby
Near the end of the series, another Joker was revealed. This one was white & pink compared to Dirk & is called the Albino Joker by fans. When the fight ended with Dirk choosing to become human, the Albino Joker attacked Crawford to release the Undead from their Rouse Cards in order to restart the fight.
- Main article: Ray Agema
Near the finale of Kamen Rider Spade Warrior, Ray Agema used his King Form to mutate into a Joker, referred to by fans as the Navy Joker, in order for Dirk to stay with their friends. His Joker form is never seen but he is seen with a belt with green accents similar to when Dirk is in Joker form. However, according to the video game, Ray's Joker form is the same as that of Dirk's Joker form, & whereas Dirk's Joker form wields a dagger, this Joker wields a sword, discontinuing the Navy Joker fandom.
- Joker Undead - Kamen Rider Blade counterpart at Kamen Rider Wiki