Bios revealed by Toei on the Kyuranger characters. Lots of potential story arcs.
ShishiRed/Lucky:
Like his name indicates, Lucky was born with the luck of the universe on his side. A naive young man, he transcends the boundaries of being a positive thinker with his strong will and is able to turn problems into chances. He often involves himself with happenings in the universe that have nothing to do with him to help those in need.
SasoriOrange/Stinger:
A cool and taciturn warrior of mystery. He was originally a member of the enemy, Jaku Matter, but appeared suddenly in front of Lucky and the others one day bearing the mark of the Kyuranger, the SeizaBlaster on his arm. Who is he really?
HebitsukaiSilver/Naga Rei:
A young man from the Hebitsukai constellation, whose people threw away "emotion" to avoid conflicts. Having met Balance, a being full of emotions, and working in tandem with him, he has developed a curiosity for them and studies them.
ChameleonGreen/Hamii:
A young woman from a race that knows Ninjutsu. She seems to be the age of a high school student. Her emotions are usually all over the place and she has vivid expressions.
KajikiYellow/Spada:
A man who is aiming to become a Universal Cook; and the Kyuranger's warrior chef of their ship, the Orion. He acts like a parent to the other Kyuranger, and is very reliable. He can cook just about everything, but at times he has a tendency to be less than sincere.
OokamiBlue/Garu:
Friends from his constellation were destroyed by Jaku Matter; a Beast-Man warrior who has lost his pride. But perhaps, meeting Lucky may just change his fate...
TenbinGold/Balance:
A mechanical lifeform abundant with emotion who acts in tandem with Naga. He is proper and is able to paint a picture with his words, but is also a bit frivolous.
OushiBlack/Champ:
Champ is a fighting robot from the Taurus star system, and was born on a manufacturing planet. He is trying to chase down the mysterious man who killed his creator. He has a speech habit when he powers up, saying "1, 2, 3, Mou!" (Mou is most closely translated to Moo)
WashiPink/Raptor 283:
Android Pilot of the Kyuranger's mother ship, the Orion. She is serious and dedicated to her mission. However, no one seems to realize that she is in fact, prone to wild delusions like a little kid.
Shou Ronpou:
The Kyuranger's commander. He tries to give off the persona of being the "Strongest Ever", but his real character is like an old man. Even in the worst of times he keeps a proper tone, but has a bad lineage. Who is he really?!
MagiYellow/BeetBuster with Kyuranger cast
Commander of the Kyuranger
Draco/Dragon constellation/ future Kyuranger maybe?