The actor welcomed two Stranger Things costars to his monologue in an episode that brought a hilarious Harry Potter meets Heated Rivalry parody, "Boy Band," and a Sabrina Carpenter cameo.

The actor made his hosting debut on the sketch comedy series, where he was joined by musical guest A$AP Rocky.

Finn Wolfhard’s SNL hosting debut featured his Stranger Things costars Caleb McLaughlin and Gaten Matarazzo, but Noah Schnapp was notably absent.Caleb and Gaten crashed Finn’s

Sabrina Carpenter returned to Saturday Night Live on January 17, where she made a surprise cameo in a sketch alongside Stranger Things star Finn Wolfhard and A$AP Rocky. The " Manchild " singer was photographed arriving at the SNL after-party wearing two It-girl coat trends and a pair of sky-high Christian Louboutin platform heels.

Finn Wolfhard's 'SNL' appearance featured a little help from his "Stranger Things" friends Gaten Matarazzo & Caleb McLaughlin.

Finn Wolfhard and Ben Marshall portrayed franchise characters Harry Potter and Ron Weasley who are opposing quidditch players, instead of hockey players like the HBO series.

For being only 23 years old, Finn Wolfhard has quite the varied resumé.