I was all set to post a clip from 1963’s The Scarecrow of Romney Marsh, starring Patrick McGoohan, but it appears that Disney has pulled all the bootlegs off of YouTube. I wanted to compare Patrick McGoohan’s Scarecrow cackle to Heath Ledger’s Joker laugh. While watching television promotions for The Dark Knight, I noticed a distinct similarity in their chuckles. They also share that jagged mouth line extension up the cheek.
I’m wondering if Christopher and Jonathan Nolan did this as an homage to the Patrick McGoohan character. Then, again, it’s just come to my attention that there is also a Scarecrow character in The Dark Night. Maybe I’ll wait until I’ve seen the movie before speculating on these things.