Mike was frequently one-upped by Jayden (Samurai Ranger Fire).
Chiaki possibly had feelings for Kotoha (ShinkenYellow).
Mike started a relationship with Emily (Samurai Ranger Earth) after the season ended.
Chiaki has no known fear.
Mike is claustrophobic.
Chiaki apeared in two seasons and four movies (Shinkenger, Shinkenger/Go-onger, Goseiger/Shinkenger, Gokaiger and Gokaiger/Goseiger/Super Sentai 199/Superhero Senki).
Mike returned in Super Megaforce and possibly teamed up with the Mega Rangers.