Benedict Cumberbatch: 'Simpsons' exec on Cumberbatch role: 'He's completely irresistible' Published Monday, Sep 10 2012, 4:55am EDT | By Morgan Jeffery (DIGITAL SPY)

The Simpsons exec producer Al Jean has spoken about Benedict Cumberbatch's upcoming guest appearance.

The Sherlock star will play two roles in the Fox animated comedy's 24th season.

Producer Al Jean

Jean joked that Cumberbatch had "muscled [his] way into being a guest star" in an interview with TVLine.

"He's really funny," Jean explained. "He came to a read, and we had a couple of things that he said, 'Hey, I could do those. Can I?' This was the first time someone actually just kinda muscled their way into being a guest star.

"He called us back and he said, 'You want me to do anything else?' - and we gave him a little more."

Jean went on to describe the Parade's End star as a "completely irresistible person".

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