Suit actor Seiji Takaiwa and TimeRed actor Masaru Nagai, who both appeared in Mirai Sentai Timeranger, worked together in Kishiryu Sentai Ryusoulger.
In episode 45 of Kishiryu Sentai Ryusoulger, two tokusatsu alumn reunited again to play the same character. Masaru Nagai, who returned to Super Sentai to portray Master Black in Ryusoulger. Nagai previously played Tatsuya Asami (TimeRed) in Mirai Sentai Timeranger, while Takaiwa is a veteran suit actor for tokusatsu best known for portraying most of the lead Kamen Riders of the Heisei era, and also provided suit acting for TimeRed. Takaiwa serves as the suit actor when Master Black transforms into Ryusoul Black, marking the first time in 20 years that the two have worked together portraying the same character in 20 years.
Director Koichi Sakamoto, who is a big fan of Timeranger, had Nagai reprise part of the Timeranger transformation pose for Master Black’s transformation into Ryusoul Black.