'Walking Dead' Star Andrew Lincoln -- Don't Ruin 'Breaking Bad' for Me!

If you want to make "Walking Dead" star Andrew Lincoln spill his show's secrets, there is one way to do it … threaten to ruin "Breaking Bad" for him.

Our photog caught up with Lincoln before the season finale of "WD" aired last night, and we asked him whether he thought the show could eclipse the finale of "BB."

But to our surprise, Lincoln said he's not caught up on the antics of Jesse Pinkman and Walter White.