Saturday Night Live alum Bill Hader made his return to the sketch show last night to show how Alan Alda would have handled the “Clever Girl” meme.

For his second time hosting SNL, Hader brought back some of his popular characters including former White House communicator Anthony Scaramucci, Devin from “The Californians,” and New York nightlife expert Stefon. But he really showed off his impersonation skills in the reimagined Jurassic Park screen tests.

“Clever girl,” Hader said as MASH star Alan Alda auditions for the role of Robert Muldoon. “And a dinosaur comes out and attacks me? That is great, just terrific. And how are you guys going to shoot the dinosaurs? Is it going to be forced perspective? See that’s how we shot Jamie Farr on MASH. He’s only two feet tall.”

Later in the video, Hader does his profanity-ridden Al Pacino impression for the part of John Hammond, originally played by Richard Attenborough. Then to finish the bit, Hader impersonates a high-pants wearing Clint Eastwood.

Other SNL cast members showed off their celebrity impersonations. Kate McKinnon had the most characters by playing Ellen DeGeneres, Jodie Foster, and Lisa Kudrow. The biggest reactions from the crowd came with Pete Davidson’s take on a singing and screaming Adam Sandler audition for the role of Muldoon, and Keenan Thompson’s pre-trial O.J. Simpson that parodied the O.J. Simpson: The Lost Confession that aired on Fox.

During the “Weekend Update,” Hader reprised his Stefon character and gave tips on New York nightlife that included the city’s hottest Irish club, “Off to Church, Mother.” Comedian John Mulaney – who was Hader’s writing partner at SNL – made a guest appearance as Stefon’s lawyer Shy to give him some advice on the politically correct term to use when referring to little people.

Hader was a cast member on SNL from 2005-2013 and was in more than 200 episodes. His return as host was to promote his upcoming HBO comedy, Barry, a show about a hitman that goes to Los Angeles to kill a target and ends up joining a theater group. It premieres on March 25.

The show will take a break for a few weeks, but will return on April 7 with none other than the Black Panther himself, Chadwick Boseman, who will likely promote Avengers: Infinity War.