After he was cast, Ryota Murai, who portrayed this show's version of Kamen Rider Kuuga, felt trepidation going into the role. Joe Odagiri, who originally portrayed Godai/Kuuga, had left such a strong impression that Murai worried Kuuga fans wouldn't accept him as the new Kuuga. In preparation for filming, Murai watched the original Kamen Rider Kuuga and found himself hooked on the show, finishing the 49 episode series in just three days. Although Murai has been a long time Kamen Rider fan, he says his experiences on Decade have made Kuuga his favorite Rider.
When transforming, the DecaDriver belt would announce "Kamen Ride." This was a direct reference to the 2009 American adaptation of Kamen Rider Ryuki, Kamen Rider Dragon Knight. In Dragon Knight, the heroes transformed by yelling "Kamen Rider!" the producer of Decade thought this was due to "Henshin!" being difficult to use. Naturally it was thought that for someone to become a "Kamen Rider", the verb form would be "Kamen Ride", which was then used in Decade.
Before filing, and while training for the Kamen Rider Decade, Masahiro Inoue became so frustrated by his inability to perform moves that he overexerted himself and ended up pulling a muscle in his hamstring. Due to this, he performed the entire first episode with a sore leg, saying "Even thought walking was difficult, and I had to run even if it killed me."
With a total of 31 episodes, this is the shortest Kamen Rider series in all the Heisei Era.
Daiki Kaito is similar to Basco ta Jolokia from Kaizoku Sentai Gokaiger, as they both can summon Riders/Sentai from a device. However, what separates Daiki from the likes of Basco is that he doesn't have a monstrous form and that he's also somewhat redeemable.