The London 50-Hour Improvathon
Showstopper Productions Ltd
London
Pleasance London
Main House Cabaret
Various
100 mins per episode
From £14
27th Feb - 1st Mar
It’s 1980-something in small town America, and life seems just perfect. Kids hang out at the video arcade; dads mow their white picket fenced lawns; and the town sheriff has stopped by the local diner for a slice of cherry pie and coffee strong enough to chew.
But it’s not just teen diaries that hide secrets in Pleasanceville. What’s happening in the high-security government research lab in the woods? Who is the corrupt mayor covering for? And can our intrepid band of misfits save the town in time to get to prom?
The Goonies meets Twin Peaks in this totally tubular adventure. Now in its interdimensional 16th year, The London 50-Hour Improvathon is the ultimate ‘you had to be there’ event.
A 50-hour improvised comedy soap opera in 25 hilarious episodes - catch just one standalone episode, or binge-watch the whole season like your favourite Netflix show.
Starting at 7pm on Friday and playing continuously in 2-hour episodes until 9pm on Sunday (yes, right through the nights!) with a live band and refreshments available throughout.
Featuring stars of Olivier Award-winning Showstopper! The Improvised Musical and Tony Award-winning Mischief (The Play That Goes Wrong), alongside comedians, performers, up-and-comers and international guests throughout the weekend. Stay tuned for the full line-up, to be announced in 2026.
This spring at the Pleasance Theatre, London, join the freakazoids for an upside-down adventure like no other. Sleep? Where we’re going, we don’t need sleep.
SPECIAL EPISODES
RELAXED EPISODE
Saturday 28th February, 11am
For anyone who would benefit from a more chilled out atmosphere to enjoy this year's bodacious adventure. We’ll adjust the lights and sound and our attitude towards re-entry, audience noise and movement is 'that’s awesome dude'.
D&D EPISODE
Saturday 28th February, 1pm
Dive into a live game of Dungeons & Dragons, and help decide which way the adventure goes, as the fate of our heroes is placed in the hands (and dice) of Pleasanceville High’s resident Dungeon Master (Mark Meer).
Legendary improviser and professional D&D player Mark Meer has DM’d for the Baldur’s Gate 3 cast and played in the official D&D show The Black Dice Society. Mark has also provided voices for many fantasy video games including Baldur’s Gate and Dragon Age.
BSL EPISODE
Saturday 28th February, 3pm
This performance will be BSL interpreted by Irmina St. Catherine. Further details to be confirmed soon.
FAMILY EPISODE
Sunday 1st March, 11am
Suitable for kids of all ages, under-12 tickets just £7.50!
WAYS TO WATCH
SINGLE EPISODE
The 50 hours are split into 25 episodes, and each starts with a summary of what’s happened so far, so you can drop in at any point!
Unlock £8 tickets for your next episode using the promo code in your order confirmation email! Email [email protected] for booking help.
WEEKEND PASS
The Weekend Pass lets you access all 25 episodes across the whole weekend for just £75. You can watch as many as you like, even the full fifty hours!
Simply click Book Now and select the performance Fri, 27/02/2026 - 19:00 [£75.00 Weekend Pass] on the dropdown to purchase.
Weekend passes are limited and subject to availability. Book now to avoid disappointment!
NIGHT SHIFT
Clock in for the Night Shift and get ready for the most fun all-nighter you’ll ever pull!
The Night Shift Pass includes five episodes* for £25 - that’s just £5 per episode! To book in night shift passes, select your preferred £25 night pass from the performance dropdown:
[Fri 27 Feb 2026 23:00 £25 Night Shift Pass #1 (Fri/Sat)]
[Sat 28th Feb 2026 23:00 £25 Night Shift Pass #2 (Sat/Sun)]
Night Shift Pass #1 (Fri/Sat)
Starts at 11pm on Friday 27th February to 9am on Saturday 28th February at 9am (11pm, 1am, 3am, 5am and 7am episodes).
Night Shift Pass #2 (Sat/Sun)
Starts at 11pm on Saturday 28th February to 9am on Sunday 1st March at 9am (11pm, 1am, 3am, 5am and 7am episodes).
Please note, you will need to buy two night passes if attending both evening sessions.
PAY BY THE HOUR
This year we’re introducing a special Pay By the Hour rate for overnight episodes of the Improvathon. That means it’s £1 for 1am, £3 for 3am, £5 for 5am, £7 for 7am & £9 for 9am!
Pay By The Hour applies to selected performances only and can't be used in conjunction with any other offer.
Access Tickets
To book in access tickets including complimentary personal assistant tickets, wheelchair accessible seating or to arrange any additional venue assistance, (such as hearing loops, early venue access or specific seat requests), please contact the box office directly to make your booking.
For more information about our venues and performance spaces, please visit our access pages here.
Phone: 020 7609 1800
Email: [email protected] // [email protected]
