Kate Middleton and Prince William Watch a LOT of "Downton Abbey"

Sometime after spilling about their secret rendez-vous with Dan Stevens at Good Morning America on Tuesday, the Downton Abbey gang headed to Bravo's Watch What Happens Live! studio to imbibe in holiday-themed liquors and a little gossip. Rob James-Collier (Thomas) revealed that his favorite onset memory involved stepping on Dame Maggie Smith's toes during a Christmas special dance sequence. (The Countess Dowager did not find the fumble funny and shot James-Collier a disparaging look that only a two-time Oscar winner could.)

Lesley Nicol (Mrs. Patmore) used her onscreen time to plead, once again, to her celebrity crush Sir Anthony Hopkins that he make a guest star appearance. And Allen Leech, who plays widower Tom Branson on the British period series revealed that he met Prince William and Kate Middleton just last week.

The subject was raised after a caller asked whether any of the cast members had interacted with any royal family members because of their Downton Abbey-related fame.

"I was at an event last week with Prince William, Duke of Cambridge, so yeah I met him last week,"Leech confessed. "I shook his hand and he actually said, 'I'm a big fan of the show, only now that my wife's had a baby." Leech and the audience laughed at this somewhat awkward, backhanded compliment. "Obviously he's got a lot of down time," Leech reasoned, imagining, "So [Kate]'s got him watching this. 'You're going to watch it with me!'"

Nichols attempted to raise Leech's royal encounter with her own, volunteering, "I met Camilla Parker Bowles!" But an unimpressed expression from host Andy Cohen revealed that this was not quite as exciting.

In other Downton Abbey royal news, we learned just last week that a character on the series will be traveling to Buckingham Palace during the upcoming Christmas special.