Critics have noted a drastic shift in the casting of Kyoryuger. Toei producer Takahito Ōmori commented on the lack of a yellow warrior in the series, something that has not happened since Dengeki Sentai Changeman, by noting that the color yellow has become associated with females for the modern generation of viewers and thus would not be able to properly portray the brutish strength a male character is capable of portraying. Ōmori also stated that they chose to make the blue warrior aged 32 to insert some oyaji gags, while also noting the use of Papaya Suzuki as the ending theme's choreographer to insert some levity, hot-blooded actor Shinji Yamashita as the red warrior's father, and the inclusion of Shigeru Chiba as the series' narrator who gives a high tension style to the show.^[3]