Wayne Knight to guest star in Torchwood?

According to clues left by the Torchwood production office, actor Wayne Knight is to guest star in an episode of Torchwood: Miracle Day.

Knight is most notable for playing Dennis Nedry in Jurassic Park and Newman in Seinfeld.

A twitter message posted by the BBC Torchwood account on Monday evening gave us our first clue:
We've got Alexa Havins here with us today with a special guest, here's a clue "uh uh uh didn't say the magic word".

Costumer Alana Stone later tweeted another:

"Dodgson! Dodgson! We've got Dodgson here! See? Nobody cares. Nice hat!"

Source - Doctor who newpage