Playwright Dan O’Brien and actors Tim Cummings and Brian Henderson join improvisers Mike Hanford, Sean Conroy, and Don Fanelli for a theatrical episode of improv4humans! Dan, Tim, and Brian present selections from Dan’s new stage play “The House in Scarsdale” that inspire scenes about extreme colorblindness, a real estate agent encouraging property damage, and a pool enthusiast romance. Later, a psychic explores familial boundaries, and Don asks a stranger to be his grandmother.

This episode is brought to you by Squarespace (www.squarespace.com code: IMPROV) and Blue Apron (www.blueapron.com/IMPROV).

Jon Gabrus, Brian Huskey, Gavin Speiller, and Horatio Sanz join Matt Besser for this year’s special 420 edition of improv4humans! They deal with rocks falling off of the roof, call in some unhelpful officers of the law, and let an agent’s son take charge. Later, they decide between becoming Tupac or George Carlin, and Billy’s Bongs runs into difficult times.

D’Arcy Carden, Gavin Speiller, and Chad Carter join Matt Besser for this week’s improv4humans! They take suggestions from listeners that inspire scenes about putting Da Vinci’s garbage on display, a combat instructor who can’t deal with tiny injuries, and helping a farmer produce the biggest jug of milk for the fair. Plus, ethicist Randy Cohen calls in to settle the Subway debate, and a couple deals with an infestation of hypotheticals.

This episode is sponsored by Squarespace (www.squarespace.com code: IMPROV).

Musical guest Lucero joins Mookie Blaiklock, Gil Ozeri, Chad Carter, and Matt Besser for this week’s improv4humans! Lucero performs a selection of songs that inspire scenes about a family taking up too much of the prayer quota, the stress of short-distance relationships, and hiking the entire Appalachian trail to break up with your boyfriend. Plus, a magician freaks out the local children, and a new inductee into hell manages to annoy Satan himself.

This episode is sponsored by MVMT Watches (www.mvmtwatches.com/improv).

Andy Daly and Will Hines join Matt Besser this week for scenes about knock-off telemarketers, defeating an improv team with clever suggestions, and the “realest” Goofy at Disneyland. Later, we get an update on the Amherst mascot nominations, and a former Subway employee takes Matt to task during Case Closed.

This episode is sponsored by Squarespace (www.squarespace.com code: IMPROV).

Jason Mantzoukas, Sasheer Zamata, Noël Wells, Horatio Sanz, and Dan Deacon join Matt Besser for live scenes about confusing coffee shop measurements, selling celebrity turds on eBay, and a low-budget rock tour. Plus, Lou Reed seeks snacks, and Dan uses his electronic stylings to supplement a trip through the dreamscape.

This episode is sponsored by Blue Apron (www.blueapron.com/improv).

Adam McKay and Neil Casey join Matt Besser for a special improv3humans! They perform scenes about a gourmet cook who uses Chef Boyardee sauce in his recipes, a boy with a talent for hiding and complaining, and a skydiver who is concerned about his vintage shoes. Plus, a Home Shopping Network agent is excessively judgmental, and the race for the title of World’s Youngest Record Holder gets heated.

This episode is sponsored by Squarespace (www.squarespace.com code: IMPROV).

Special musical guests The Staves join John Gemberling, Eugene Cordero, Shaun Diston, and Matt Besser for this week’s improv4humans. The Staves play songs that inspire scenes about a prison tattoo with terrible side effects, misunderstanding the concept of an Xbox, and a band that compliments every city but the one they’re playing in. Plus, John has a hard time getting his name spelled correctly at Starbucks, and telekinetic children push the boundaries of acceptable behavior.

This episode is sponsored by Casper Mattresses (www.casper.com/improv) and MVMT Watches (www.mvmtwatches.com/improv).

Dan Lippert and Drew Tarver join Matt Besser for this week’s improv4humans! They perform scenes about an impressive Japanese Starbucks, hiring a homeless man for entertainment, and getting matching airplanes for your anniversary. Plus, they jazz up the Olympic Pentathalon for a modern audience, search for the least offensive mascot name, and play “fuck, marry, kill” with the three stages of Jesus.

This episode is sponsored by HBO’s “Crashing.”

Ian Roberts and Jessica McKenna join Matt Besser for a live episode straight from the SF Sketchfest! They take audience suggestions which inspire scenes about hashing out the specifics of butterfly travel, hiding baldness through haircut enthusiasm, and a jockstrap salesman competing with a lemonade stand. Plus, Melania Trump tries to make the internet smaller, and a dying man has very specific musical requests for his caretaker.

This episode is sponsored by Squarespace (www.squarespace.com code: IMPROV) and HBO’s “Crashing.”

Joel Spence, Colton Dunn, and Johnny Meeks join Matt Besser for this week’s episode of improv4humans. They perform scenes about a ragtag group of retail freedom fighters, children’s books that teach harsh life lessons, and a town up in arms about progressive snowmen. Later, they set unrealistic goals on their wish-boards, visit a shoe outlet that enforces a sock policy, and rescue their dogs from a rhino’s headlock.

This episode is brought to you by Blue Apron (www.blueapron.com/improv) and HBO’s “Crashing.”

Charlie Sanders, Don Fanelli, and Laura Willcox join Matt Besser to experience a hardcore snow room on this week’s improv4humans! A child services agent has issues with interior design, a congresswoman takes a stand against her own daughter’s artwork, and an author is pressured to hunk up her protagonist. Later, we meet a teacher who gives fish for grades and a couple of spies that can’t fathom a human birth.

This episode is sponsored by Squarespace.com (www.squarespace.com code: IMPROV) and MVMT Watches (www.mvmtwatches.com/improv).

Special musical guest Colleen Green joins Mary Holland, Kevin Dorff, Horatio Sanz, and Matt Besser for this week’s improv4humans. Colleen’s songs inspire scenes about impressing your disco friends, a child only capable of older references, and having a tough time in calendar class. Later, we find out what really goes on at a mayonnaise factory and why throwing your money away is the most punk rock thing to do.

This episode is sponsored by CNN’s The History of Comedy and The Harold Ramis Film School.

The humons have voted, and here are your favorite scenes of 2016. These performances feature James Adomian, Mary Holland, Jon Gabrus, John Gemberling, Gil Ozeri, Anthony Atamanuik, Neil Casey, Pam Murphy, Ian Roberts, Sean Clements, Jessica McKenna, Zach Reino, Nicole Parker, Paul Rust, Andy Daly, Bob Dassie, Mookie Blaiklock, Seth Morris, Horatio Sanz, Shaun Diston, Adam Pally, Lauren Lapkus, Erin Whitehead, Stephanie Allynne, and Danielle Schneider.

This episode is brought to you by Blue Apron (www.blueapron.com/improv) and Squarespace (www.squarespace.com code: IMPROV).

Seth Morris, Chad Carter, Anthony Atamanuik, and Adam Pally join Matt Besser for a LIVE episode of improv4humans! Audience suggestions inspire scenes about hiding a legendary cow, a first-time gut wound, and three roommates posing as a demon. Youtube clips lead to an iPad with only mirror-related apps, an Amazon device that won’t stop ordering Tide, and regular fuck-party problems. Plus, special guest Landlady sings a song that inspires everybody not to dance.

This episode is brought to you by HBO’s Real Time with Bill Maher and Harold Ramis Film School.