Lucas, Josie and others in “Unfinished Business”

So how do we know which one is Josie?

Are you kidding me, Lucas, if you had half a brain you'd be dangerous!

Ouch, that's definitely Josie.

Maybe, she's like your identical twin?

But I don't have an identical twin.

Maybe you've been cloned.

[looks at Marshall] Remember that half a brain comment I just made to Lucas? Well, I think I just found the other half.