What actors and actresses appeared in Unexpected Guest - 2012?

You are likely thinking of the 2016 film *The Unexpected Guest*, which is a remake of the 1958 Agatha Christie play of the same name. Here are some of the actors who appeared in that film:

* Dan Stevens as Michael Stark

* Greta Scacchi as Laura Warwick

* Aidan Turner as Richard Warwick

* Charles Dance as Dr. Gerrard

* Rhys Ifans as Brian

* Perdita Weeks as Sally

It's important to note that there is no movie titled *Unexpected Guest* released in 2012. If you are thinking of a different film, please provide more information.