The 13th Annual SteelStacks Improv Comedy Festival is Jan. 23 and 24.

The two-day marathon features improvisational teams from the United States delivering nonstop, high-energy comedy.

The Jan. 23 headliner is “Connor Ratliff presents The Acting Class.”

The Jan 24 headliner is “Opening Night: The Improvised Musical.”

“Connor Ratliff presents The Acting Class” is a one-person improv show disguised as an acting class from the creator of the “Dead Eyes” podcast.

“Opening Night: The Improvised Musical” is a Broadway-style musical that is made up on the spot based on audience suggestions. The show stars Shulie Cowen, Norm Thoeming, Matt Young and Jonathan Dinerstien.

The Jan. 24 post-headliner, Barko, brings calculated slapstick improv to the stage. Physical theater artist Nick Gillette, martial artist-philosopher Pim Van and polymath clown-writer Sam Miller find the humor in the everyday parts of daily routines.

In addition to the spotlight performances, the festival has a lineup of 39 improv teams representing the Lehigh Valley, New York City, Philadelphia, Washington D.C., Chicago and Pittsburgh.

Attendees ages 13-17 must be accompanied by a parent or guardian.

Schedule

Jan. 23

5:15 p.m.: Yes, And Ceremony

5:20 p.m.: Jen and Andy’s Bogus Journey, from Lehigh Valley

5:35 p.m.: Just Friends, from Philadelphia

5:50 p.m.: Third Wheel, from Philadelphia

6:05 p.m.: Brunch Buddies, from Brooklyn, N.Y.

6:25 p.m.: Staycation, from Lehigh Valley

6:40 p.m.: The Latchkey Kids, from Pittsburgh

6:55 p.m.: Hot FM, from New York, N.Y.

7:10 p.m.: Synced Up, from Lehigh Valley

7:25 p.m.: Remain Dog, from Philadelphia

7:45 p.m.: We’re Good, You’re Great, from Lehigh Valley

8:05 p.m.: Macbeth “The Scottish Improv Team,” from Sunnyside, N.Y.

8:25 p.m.: Mercy Santos, from Brooklyn, N.Y.

8:45 p.m.: Connor Ratliff Presents: The Acting Class, from New York, N.Y.

9:45 p m.: Go Fish!, from Philadelphia

10:00 p.m.: This Movie Does Not Exist, from Lehigh Valley

10:15 p.m.: Jam

Jan. 24

2 p.m.: Luxury Gas, from Lancaster

2:15 p.m.: Swear Jar, from Philadelphia

2:30 p.m.: Twin Dog, from New York, N.Y.

2:45 p.m.: The Improv Your Life Players, from Willow Grove

3 p.m.: People’s Improv Group, from Burlington, Vt.

3:15 p.m.: Duct Tape Plumbers, from Ambler

3:30 p.m.: That Thing You Pull When You Want to Stop, from Chicago, Il.

3:45 p.m.: No Duds, from Brooklyn, N.Y.

4 p.m.: Swingers, from Brooklyn, N.Y.

4:15 p.m.: Just One Bed, from Washington, D.C.

4:30 p.m.: Zero, from New York, N.Y.

4:45 p.m.: Tim for Short, from Lehigh Valley

5 p.m.: Brothered Toast, from Brooklyn, N.Y.

5:15 p.m.: Naughty by Nurture, from Lehigh Valley

5:30 p.m.: Paging Doctor Pigeon, from East Hartford, Conn.

5:45 p.m.: Danger Stage, from Pittsburgh

6:05 p.m.: Dance Factory, from New York, N.Y.

6:25 p.m.: The Board, from New York, N.Y.

6:45 p.m.: GirlProv, from Norfolk, Va.

7:05 p.m.: Incognito, from Enfield, Conn.

7:25 p.m.: Breakfast Boys, from Brooklyn, N.Y.

7:45 p.m.: Schmooty!, from Philadelphia

8:05 p.m.: Go Dummy, from Brooklyn, N.Y.

8:25 p.m.: Cobra, from Lehigh Valley

8:45 p.m.: Opening Night, from Los Angeles

9:45 p.m.: BARKO, from Philadelphia

10:15 p.m.: After-Party

Workshops

10 a.m. Jan. 24: Simple and Sustainable Scene Work with Connor Ratliff

11 a.m. Jan. 24: Music Improv Workshop for Beginners with Shulie Cowen and Jonathan Dinerstien

11 a.m. Jan 25: Every Scene a Painting with Nick Gillette

Tickets:

https://www.artsquest.org/festivals/more-festivals-and-experiences/steelstacks-improv-comedy-festival/