Sherlock star Benedict Cumberbatch: I wear a fat suit and cheek-plumpers for Parade's End love triangle role
As Christopher Tietjens - an aristrocrat in a love triangle with two women - he's a different shape.
'I wore a fat suit under my clothes and had bumpers in my cheeks,' reveals Benedict.
'I was at a meeting yesterday in the same place as The Simpsons is recorded and heard there was a part going in an episode,' Benedict tells InStyle.
said: "I hate to muscle in here, guys, but could I record it?" Next
thing, I'm standing in a room with all those famous voices: Bart, Marge, Homer, Lisa...'