Motorcity/WMG

Tooley is Kane's Replacement Goldfish for Mike.
It would explain why Kane keeps him around in the first place, what with him being dumb as a bag of hammers. Kain had both his partner (Jacob) and protege (Mike) light out on him, but Tooley is loyal to a fault.

Mike knows Julie is Kane's daughter.
Think about it. Mike was Kane's protege, close enough for his betrayal to cause Kane a lot of emotional distress. How the hell could he be that close to Kane and not know his daughter?
 * Kane could be a big believer in keeping work at work, and he doesn't seem like the type to gush about his family. Also, it's entirely possible Mike may have known about Julie, but never met her. The "you don't know him like I do" scene in the first episode suggests he's unaware they're related.
 * Or Mike's line about knowing Kane better could be reference to the fact that Mike knows Kane as a ruthless tyrant, while Julie spent most of her life knowing him only as a doting father.
 * Except they played the scene as a classic "He doesn't realize, and she's not telling" interaction -- Mike's comment was carefree and offhand, and Julie did the whole lip-biting "You have no idea" gesture. We've seen enough of Mike, in particular, to know that he's pretty tuned in to his friends' emotions. I doubt he would have been so flippant if he knew.

Counter to the above: Mike doesn't know, and it'll cause problems later on.
One option is that Kane finds out about Julie's double life before the Burners do, and uses that information to his advantage. (Personally, I'm looking forward to a scene where both parties find out at once.) "Kane: Julie?

Julie: Dad?

Everyone Else: Say what?"

Possibly, no one knows that Julie is Kane's daughter.
In "Texas-ify It" Julie helps some civilians of Detroit Deluxe openly and doesn't seem to be concerned with being recognized. Maybe due to politics and people like the Terras, Kane keeps Julie's identity as his daughter under wraps for her safety?
 * I like it.

Kane knows Julie is a Burner.
Kane knows his daughter is betraying him on a daily basis. The problem is, after losing Mike, Kane has serious issues with losing those close to him. He keeps Tooley around because he knows Tooley is someone he can put trust without fear of abandonment. He'd confront her on it, but deep down Kane is so averse to the idea of losing another person near him that he willfully blinds himself to the truth.

There will be a Sixth Ranger, and he/she will drive a motorcycle.
And his/her identity will be unknown for a while because he/she is always wearing a helmet.
 * Like Durara?

Texas is in some way related to Kamina... some way.
Texas' entire world is basically condensed Spiral thinking. His urge to 'Texas-ify' is his urge to go Beyond the Impossible. Kane is an anti-Spiral collaborator who uses Bread and Circuses and bland, self-expression-free high technology to keep people from being inspired.