And other highlights, like Sherlock Holmes vs. Dr. Below, see other highlights from the panel.
Cumberbatch appeared!
Its going to be fun, he said in a video.

Credit: Robert Viglasky/Hartswood Films for MASTERPIECE
Beyond the laughs, Cumberbatch and fellow panelists addressed the more serious as well.
Sherlock vs.
The crossovers are slight.
But he recognized that both are cerebral characters.
His key to playing such roles?
You confirm you get really smart writers.
Theres something slightly more severe, he explained of his Victorian version.
She continued to describe the character as sassy and tricky and called her a great female character.
Plus, in season four, Marys baby features.
Abbington added, Its really dark.
Its the darkest Steven and Mark have written.
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