[Enchilada645]

Okay so looking at an article in terms of face actors.

http://natalie.mu/eiga/news/412700

Ryouta Murai is back as Onodera Yusuke
Rena Takeda (Mizuki from Amazons) is back playing a character named Misa Kuon.
Kazuki Namioka (Sid) is playing some Yakuza-styled man
Metal Yoshida (Oren) is playing a houswife
Moro Morooka (Minor bits in Toku, most recent was a recurring character from Ghost) is playing an old man again.

That's also not counting that we see the Diend and Kiva-la suits briefly in the trailer too alongside Oma Zi-O.

The full main cast for Zi-O is back, so the other three Zi-O Riders, and the Time Jackers, 4 out of the six rocking incredibly different hairstyles to the point where I'm breaking at the moment because Woz with luscious hair is not computing properly with me.