'I'm the president now': Brendan Gleeson is an uncanny Donald Trump in 'The Comey Rule' first look

Step aside, Alec Baldwin – there's a new Donald Trump lookalike in Hollywood. 

Brendan Gleeson looked unrecognizable as the president in a first look teaser for Showtime's "The Comey Rule," a drama based on former FBI director James Comey's book "A Higher Loyalty." Jeff Daniels plays Comey and stars alongside Gleeson.

"I know some people at the bureau have it in for me, but I'm the president now," Gleeson's Trump says in the teaser, later adding "nobody gets treated as unfairly as I do. I need loyalty."

The series, which premieres September 27, dubs itself an "immersive, behind-the-headlines account of the historically turbulent events surrounding the 2016 presidential election and its aftermath" centering on "two powerful figures, Comey and Trump, whose strikingly different personalities, ethics and loyalties put them on a collision course." 

"I have looked at this from every angle," Daniels' Comey says. "They're all terrible. We're steaming toward an iceberg."

Brendan Gleeson as President Donald J. Trump in "The Comey Rule."

Although the trailer promises the story isn't just the biopic of one man, users on social media had the most to say about Gleeson's casting as Trump. 

"Brendan Gleeson as Donald Trump … might actually work?" remarked @Mr_Considerate.

Gleeson’s likeness is incredible!" wrote @gosborn20.

Others weren't quite so convinced: "Gleeson looks so much like Trump in the profile shots, it's kind of a letdown when you see the face," tweeted @moviespleaseyt. "Still, surprised how much he sounds like Trump."

Gleeson as Trump in "Comey."

Remember those cameos?:President Trump's best TV and movie spots pre-White House

Gleeson isn't the first in Hollywood to don a blond wig and imitate Trump's voice. Baldwin's guest appearances on "Saturday Night Live" is perhaps the most well-known. Multiple "SNL" cast members including Taran Killam, Darrell Hammond and Phil Hartman also portrayed the president, while other stars like Jimmy Fallon, Jon Stewart, Johnny Depp, Anthony Atamanuik and Meryl Streep have done the same on other shows. 

Before his days in the White House, Trump made many a cameo himself in '90s and early 2000s movies and TV shows including "Sex and the City," "Zoolander," "The Nanny" and "Home Alone 2: Lost in New York."