Has to be. For a while I thought Solomon would be, but since he didn't recognize Lance, or his fighting style, he can't be.
I figure Lance's father stepped through the gateway thing, ended up on Earth and found a world populated by humans that was entirely unequipped to deal with any sort of hostile alien invasion, so he created the Galactic Guardian Group and has spent the last ten years or so equipping and training them. The life support thing he seems to be in is due to the effects of going through the gateway unprotected. [/nerd]
I liked seeing Octus be a badass for once, too. I wish the fight between him and Solomon had been able to go a bit longer. (Also the fake name Solomon used was 'Kane.' As in 'Solomon Kane.')