There is a moment, familiar to every murder mystery host, that arrives just after the date has been arranged. The RSVPs are in. The game is chosen. The food is mostly planned.
And then it hits you: who gets which character?
This, it turns out, is one of the most important decisions you'll make. Not because it'll ruin the evening if you get it wrong, it won't, but because getting it right can transform a fun night into a genuinely legendary one.
One quick note before we dive in: if you're playing a Murder In The House game, you won't know who the murderer is any more than your guests do. You're a player too, not just a host, which means you're casting roles blind, without a secret solution tucked up your sleeve. This is, frankly, part of the fun. It also means casting becomes a slightly delightful act of chaos, because you're genuinely not sure what you're unleashing.
Here's how to make the most of it.
1. Read the Character Sheets Before You Assign Anything
This sounds obvious. You'd be surprised how many hosts skip it.
Before you start matching names to roles, sit down with your game and actually read every character profile. Not just the name, because the character who looks like a boring background role on page one is often the one with the most spectacular secret buried further in.
You're not just handing out name cards. You're casting a show. You need to know the material before you start thinking about the cast.
And yes, one of those characters will be yours. Pick one that genuinely appeals to you, not just whoever's left over after you've sorted everyone else. You deserve a good role too.
2. Give the Loudest Person the Quietest Role
This is a counterintuitive one, and it works almost every time.
Every group has that person, the one who will absolutely dominate any room they're in, who has never met an awkward silence they couldn't fill, who will, left to their own devices, accidentally become the entire evening's entertainment. You know who they are. They know who they are. Everyone is slightly in awe of them.
Don't give them the showiest role. Give them the brooding one. The secretive one. The character who speaks little but knows everything.
Watch what happens. Suddenly, they're deploying long, meaningful pauses. They're letting things hang in the air. They're being mysterious instead of just loud. It's remarkable. It's like giving a golden retriever a job, the energy is the same, but now it's doing something useful.
3. Give the Shyest Person a Role With Clear Instructions
The quietly terrified guest, the one who was invited by someone else, who doesn't quite know anyone, who looked slightly haunted when you told them there'd be "a little bit of acting", deserves particular thought.
Don't give them a character whose whole deal is being enigmatic and leaving things unsaid. That's not a role, that's an invitation to disappear into their glass for three hours.
Give them a character with clear, concrete things to do. A character who has specific information to share. A character whose purpose is to tell people things, ask questions, stir the pot. Give them tasks, not atmosphere. Tasks are manageable. Tasks are survivable. And you might find, somewhere around the third round, that this is the person who surprises everyone most completely.
4. Think About Real-Life Relationships
Consider how your guests get along with each other, not just on their own. The characters who are in a heated rivalry? Don't cast two people who'll be too polite to actually argue; cast two people who already have friendly banter and won't mind things getting slightly heated for the sake of the game.
The character who has to reveal something uncomfortable about a close ally? Cast the person who will absolutely relish the drama, not the one who'll spend the whole scene apologising.
The characters who are secretly connected, old friends, rivals, former flames? Think about who in your group will actually play that dynamic rather than quietly glossing over it. Because those connections, when they click, are where the best moments happen.
5. Don't Give Best Friends the "Best Friends" Roles
This is a trap many hosts fall into. Two characters are close allies in the game, so naturally, you assign them to your two actual close friends.
The result: those two spend the entire evening talking to each other and accidentally opt out of the rest of the party. They're having a wonderful time. They are an island.
Spread your social anchors around the table. Give the close friends roles that put them on opposite sides. They'll still find each other, they always do, but now the whole room benefits from their energy rather than just the two of them.
6. The Complicated Role Goes to the Person Who Enjoys a Challenge
Most games have one. The character who's juggling multiple secrets, involved in several plot threads at once, and seems to have an opinion about absolutely everything. This role is not for the easily overwhelmed. It's not for the guest who's checking their phone periodically or who hasn't quite read their character sheet.
It's for the person who will lean in completely, who actively enjoys a complicated situation, who will still be going strong at the finale when everyone else is running out of steam.
You'll know who this is. Trust that instinct.
7. Ask Before You Assign (Just a Little Bit)
You don't need to conduct formal interviews. But a quick, casual message, "quick question: would you rather play someone glamorous or someone sinister?" can do a remarkable amount of work.
People often have a clear preference they've never been asked to express. Some people desperately want to play a villain. Some people will do anything to avoid it. Some people have been waiting their whole life to play a faded aristocrat with a secret gambling problem. You simply don't know unless you ask.
This also has the happy side effect of building excitement before the event. Nobody receives that message and then fails to think about the party for the rest of the week.
8. Remember: You Might Be Casting the Murderer Without Knowing It
This is the part that makes pre-game casting genuinely exciting: somewhere in that stack of character sheets is the killer, and you have absolutely no idea which one it is. You might assign it to your most mild-mannered friend by complete accident. You might hand it to the person least likely to keep a secret and watch in delight as they somehow manage it anyway.
This means the only real casting rule is: make sure everyone is set up to play. Because on the night, any one of them could turn out to be the one the whole evening has been building towards. The murderer who commits, who lied convincingly all evening and then owns the reveal at the end, becomes the most memorable thing about the night.
Cast everyone well, and whoever it turns out to be will deliver.
The Short Version
Cast against type for the comfortable people. Cast with support for the people who aren't. Think about dynamics, not just individuals. Save the complicated role for someone who'll relish it. And remember that somewhere in your guest list, without either of you knowing it, you've already cast the murderer.
The game does a lot of the work. Your casting does the rest.
Now go make some very specific decisions about your friends. You've earned it.
