A collection of various assets displayed on a digital interface, featuring graphs and charts in vibrant colours.

Speculations
Tickets From £20.75

Venue

Marylebone Theatre

Janie Dee stars as Dorothy Kilgallen in the world premiere of Torben Betts’ gripping new political thriller, directed by Trevor Nunn.

Marilyn Monroe. John F. Kennedy. Lee Harvey Oswald. Three deaths that shook America. One woman who refused to stop asking questions.

New York, 1965. Celebrated journalist and television star Dorothy Kilgallen is chasing the biggest story of her career.

America has been given its answers. Dorothy doesn’t believe them.

Her investigation leads from Hollywood to the White House, from the Kennedy dynasty to the New Orleans underworld — and towards a web of connections between some of the most powerful and dangerous figures in America.

But someone wants Dorothy to stop asking questions. And as the threats move ever closer to home, uncovering the truth could cost her everything

What if the stories we know aren’t the whole story?

Closing

03/01/2027

Running Time

To be confirmed

Genre

Drama, Plays

Age & Content

To be confirmed

Cast:

Janie Dee as

Dorothy Kilgallen

Jolyon Coy as

Robert F. Kennedy

Natalie Dunne as

Marilyn Monroe

Gloria Obianyo as

Flo Jackson

Joseph Potter as

Lee Harvey Oswald

Ferdy Roberts as

Carlos Marcello

Creative:

Writer -

Torben Betts

Director -

Trevor Nunn

Associate Director -

Natalie Simone

Set & Costume Designer -

Lee Newby

Sound Designer & Composer -

Gregory Clarke

Lighting Designer -

Johanna Town

Casting Director -

Nadine Rennie CDG

Book Speculations Tickets

To book access tickets:

Captioned Performance

Captioned

24 November 2026

7:30pm

Frequently asked questions

Speculations is playing at Marylebone Theatre in London. Your ticket selection will show available performance dates and times, and you can book securely online via Official London Theatre. For the smoothest experience, pick a performance from the calendar and book early for popular dates.
Marilyn Monroe. John F. Kennedy. Lee Harvey Oswald. Three deaths that shook America. One woman who refused to stop asking questions.
The running time for Speculations is To be confirmed. Duration can occasionally vary slightly by performance, but this is the listed length for the production.
Speculations is recommended for ages To be confirmed. If you’re bringing younger theatregoers, it’s worth considering themes and attention span alongside the age guidance. Some venues also have their own admission policies, so it can help to double-check requirements before you travel.
Speculations opens on 30th October 2026 and is currently scheduled to run until 3rd January 2027. If you’re planning a trip or booking for a specific week, check the performance calendar for dates and availability, as popular performances can sell faster closer to the run.
You can buy tickets for Speculations online through Official London Theatre. Choose your preferred performance in the calendar, select seats if available, and complete your purchase securely.
Speculations features a cast including Janie Dee (Dorothy Kilgallen), Jolyon Coy (Robert F. Kennedy), Natalie Dunne (Marilyn Monroe), Gloria Obianyo (Flo Jackson), Joseph Potter (Lee Harvey Oswald), Ferdy Roberts (Carlos Marcello). Casting can vary by date, so if you’re booking specifically to see a particular performer, it’s worth checking any casting notes for your chosen performance.
Speculations is written by Torben Betts and this production is directed by Trevor Nunn. The creative team shapes the tone, pacing and staging style, so if you’re choosing shows based on writers or directors you love, these credits can help you decide whether Speculations is the right pick.
There isn’t a strict dress code for London theatre, so wear whatever you’ll feel comfortable and confident in. Most people go for smart casual - think jeans or trousers with a nice top, a casual dress, or a shirt and trainers. If you’re heading to an evening show, on a date, or celebrating something, you might fancy dressing up a bit more, but it’s completely optional.
Arriving at least 30 minutes before the scheduled start time helps keep things smooth and stress-free, giving you plenty of time to collect tickets, go through security, and get settled in your seat before the performance begins.
Book Tickets from £20.75