Kate McKinnon proved, once again, that she is Saturday Night Live's MVP this weekend as she suited up for yet another critical role in the show's continued lampooning of the Donald Trump administration.

Adding to her political imitation repertoire — which already includes Hillary Clinton, Jeff Sessions, Kellyanne Conway, Betsy DeVos, Ruth Bader Ginsburg, and Angela Merkel — McKinnon strapped on some boxy jaw prosthetics to become none other than Special Counsel Robert Mueller for "Weekend Update."

Mueller is currently spearheading the federal investigation of Russian interference in the 2016 presidential election and the Trump campaign's possible ties to Russia. The former FBI director has been a centerpiece of the last few months' news, having secured several guilty pleas from former Trump campaign officials for misleading the FBI and indictments against others for similar charges.

Although Mueller and his team have been remarkably silent about the details of the on-going investigation, and Mueller's public persona is professionally mum, McKinnon's version is literally chomping at the bit to spill the beans on what they've got and where this is all going.

"I wanted to come out here tonight to assure the American people that our investigation's progressing smoothly and we're looking forward to a timely and orderly conclusion," McMueller tells us. "Obviously I can't discuss particulars of an on-going investigation, but, uh ... yeah, we good."

Playing on the fact that former National Security Adviser Michael Flynn has since signed a plea agreement with Mueller to cooperate with the investigation, McMueller says that the Special Cousel's office isn't going anywhere, even if Trump does try to shut it down as he'd done by firing FBI Director James Comey. The reason? It's just too darn late by now.

"Cat's out of the bag, and the bag's full of, how do I say this, Michael Flynn's wire taps," McMueller explains. "You gotta understand, the guy didn't leave me a trail of breadcrumbs. He left me full loaves. Fresh seven-grain loaves straight from Panera Bread. I'm having a blast, you know?"

As for how this is all going to end, McMueller has hope: "You know how you loved the show Lost, but it never really came together? There was no satisfying ending? This ain't Lost."

McKinnon's new impersonation wasn't the only new face to join the fold during this week's "Weekend Update" segments, either.

Cecily Strong appeared as Stormy Daniels, the porn star who reportedly had an affair with Trump just months after his wife Melania gave birth to their son Barron.

"I'm like a liberal hero, even though I'm a Republican porn star who loves Sarah Palin. Things are so bad right now," she says of her revelatory interview that offers embarrassing details about Trump's extramartial relationship with the wannabe Apprentice star.

"I get it that I'm not what these people envisioned their hero would look like. But guess what America? I'm the hero you deserve right now," she adds. "Take for instance the Steele dossier. When the information about Russia was important enough that somebody wound up dead, but all you wanted to talk about was the Russian hookers, that's why you get me ... When I was hanging out late at night with Donald Trump and Ben Roethlisberger, and the one I trusted to get me home safe was Ben Roethlisberger, and then you guys went and made the other guy president, you get a Stormy. And ladies, when it's the one year anniversary of the Women's March, and ya'll are arguing about who gets to say 'Me Too' and who doesn't? You get a Stormy."