[Smallville] Episode 02/11--Has the Paladin been tainted? [spoilers]

[Staffan]

I was very interested in the biologist. Now Lex has someone else to look at Clark's blood. Does he still have that sample, at all?

The original blood sample is gone - Luthor Sr. got it from the Luthorwife Mk. II (aka Helen Bryce), Morgan Edge hired Clark in his Kal phase to steal it from Luthor's office, and Clark smashed it. However, Lionel got his hands on a second sample.

Personally, I wouldn't be surprised if that's the origin of Adam's weird blood.

The producers promise 'more people from the DCU' and, I think, specifically from the Superman mythos this year, so... who, I wonder?

I've seen mention that maybe Diana Prince will show up this or next year.