[The Wire] Cheese related to Randy?

I noticed in last night's (24 Feb) episode that Cheese's* last name
is Wagstaff, the same as Randy's**.  Are they related?

I've only been watching since last season, so maybe this was all
explained in one of the first three.

I'm really cheesed(!) off they're only doing 10 episodes this time
instead of 13, but on the other hand I have to admit that this
season, though still fantastic, has been notably weaker than last.
The whole McNulty/Freamon manufactured serial killer thing is just
a little too on the nose.

* Prop Joe's nephew, ratted out Butchie (Omar's blind friend) to
Chris and Snoop, betrayed Prop Joe to Marlo and is now his new
lieutenant for the Eastside.

** One of the four boys featured last season -- re****ted Lex's
murder, and for his trouble ended up getting his foster mother
hospitalized and himself put into a group home.  Had a cameo this
season, re-interviewed, futilely, by Bunk.

-- 
Jim Heckman