Two Israeli designers, a merged name and a face game.

Guess Who? is a two-player deduction game built around a row of drawn faces. Each player keeps a board of small hinged frames, each holding a cartoon portrait with a first name, and secretly draws a mystery card showing one of the same characters. Players take turns asking a question to be answered with “yes” or “no”, then flip down every face the answer rules out, until one of them is ready to name the opponent’s character.

The game came from Theo and Ora Coster, a married couple of Israeli game designers. BBC News reported in September 2021 that Theo, who was born in Amsterdam and was a classmate of Anne Frank, travelled to Israel by motorcycle in 1955, settled there and met Ora, an art teacher. The couple combined their first names to make the name of their studio, Theora Design. The same BBC report describes Guess Who? as a face recognition game sold in many language versions, and says the couple’s sons, Boaz and Gideon Coster, run the company.

English Wikipedia, citing Theo Coster’s 2013 memoir We All Wore Stars, says the game was released in Dutch in 1979 under the name Wie is het?, that Milton Bradley then produced it in the United Kingdom, and that it reached the United States in 1982. The Independent, writing in November 2012, described it as a game manufactured in 1979 in the UK before being sold to the US. Deadline, reporting in April 2021, dated its launch to 1979. The BBC report adds that the couple began by making promotional giveaways for companies, including an ice-cream stick that doubled as a construction toy, before turning to games.

The studio name is itself a small piece of identity design. “Theora” folds two people into one word, the same way the game folds a whole cast of strangers into a single grid. BBC News also reported in 2021 that the couple’s gravestones in Tel Aviv were designed to echo the cards of Guess Who?.

Milton Bradley, Hasbro and the face cards.

The publisher on the box from the late 1970s was Milton Bradley, the Springfield, Massachusetts, games company. The New York Times reported on 5 May 1984 that Hasbro, then a toy maker based in Pawtucket, Rhode Island, had agreed to acquire Milton Bradley. Hasbro has owned Guess Who? through that purchase since 1984. English Wikipedia records that Milton Bradley was merged with Parker Brothers inside Hasbro in 1998 and that the Milton Bradley name was used as a brand until 2009, after which the games were sold under the parent company’s own name, now Hasbro Gaming.

Television carried the brand to a wider audience. English Wikipedia says American advertisements for the game often showed the characters on the cards coming to life and trading remarks, and that later spots carried the spoken disclaimer that the game cards do not actually talk, in line with Federal Trade Commission guidance on toy advertising. In April 2021, Deadline reported that an unscripted television adaptation of Guess Who? was in early development at NBC, from Endemol Shine North America and Hasbro’s entertainment arm eOne, after being in the works since 2019.

Licensed editions have used the same board with different faces. English Wikipedia lists special editions built on characters from Star Wars, Batman, Marvel Comics, Super Mario, Disney, Peppa Pig and The Simpsons, along with smaller travel versions, a scratchcard version and a 1999 computer game from Hasbro Interactive. In these editions the board format stays the same while the portraits change.

The cast of the classic edition has been the subject of public discussion. The Independent reported on 17 November 2012 that an Irish six-year-old had written to Hasbro UK’s customer services asking why her edition had far more male than female characters, in an exchange posted online by her mother, the journalist Jennifer O’Connell. Hasbro replied that the game was “based on a numerical equation”, with each characteristic shared by the same number of faces, and that it aimed to “draw attention away from using gender or ethnicity as the focal point”. The same report said that editions produced over the preceding decade had changed the faces and added more women. Hasbro’s current instructions for the classic game, archived in 2025, add an optional rule: for an added challenge, players should not ask whether the mystery character is male or female until the third turn.

Design and documentation.

A board game reaches its players as a box before it is ever a set of rules, and the box lid usually does more of the identity work than any single piece inside. The lid carries the name, the logo and often a photograph or illustration chosen to show who the game is for, and that image can be redrawn many times over the years while the name stays the same.

Inside the box, the identity continues in physical form. Moulded plastic pegs, discs, frames and trays, printed boards, cards and rule sheets each carry colours and shapes that players come to recognise, and a change of supplier, licence holder or market can quietly change all of them at once.

Each guide in this group looks at a game brand through those layers: who devised the game and when, which companies have made and sold it, how its name and box art have been handled, and what its components look like. It separates what independent, dated sources record from what a publisher says about its own history, and treats the palette shown here as our own interpretation rather than an official specification.

A question mark, two boards and a cast of faces.

The Guess Who? identity is carried as much by the components as by the logo. Hasbro’s instructions for the classic edition describe two gameboards, one red and one blue, each with its own set of face cards that slide into small doors on the board, plus a separate deck of mystery cards and a scorekeeper that clicks into each board. The cards can be arranged in any order, the rules say, because a character’s position on the board does not matter.

The question mark in the name does a similar job. It turns the title into the opening line of the game itself and invites the player to speak, which is how the game is played. Hasbro’s rules frame the whole session as a series of questions, from “Is your person wearing glasses?” to the final guess, and warn that a wrong guess loses the game.

The portraits are the part of the game that changes between editions. Licensed editions swap in faces from other franchises; the classic set has been redrawn over time, and reporting such as The Independent’s in 2012 shows how closely players read the faces themselves. Hasbro’s 2012 reply described the classic set as built so that each characteristic, such as glasses or hair colour, is shared by the same number of faces.

The Coster studio is part of the brand story too: Theora Design is named for its two founders.

For a design guide, Guess Who? shows how a single repeatable unit — a framed face with a name — can become a brand system that survives new owners, new artwork and borrowed casts while the board and the question mark stay the same. Compare it with Monopoly, another board game in the Hasbro catalogue, and Play-Doh, a Hasbro toy brand with its own long-running packaging. For this guide we use board red, board blue and card yellow with a rounded sans, an unofficial interpretation; no product or logo is reproduced.

Keep Guess Who?’s identity on hand — save it to a board in the Made Good inspiration library.