Dennis Quaid and Annaleigh Ashford star in the Paramount+ true-crime series “Happy Face,” about the real-life Happy Face killer Keith Jesperson, which premieres with two episodes this week.

Some of the names and details have been changed from the actual people — his daughter, Melissa Moore, who is an executive producer on the show is now Melissa Reed — but the story is essentially the same.

Here is who plays who in the cast and where you might have seen them before.

Annaleigh Ashford as Melissa Reed (Credit: Bettina Strauss/Paramount+) Annaleigh Ashford as Melissa Reed

The actress, who is known for “Masters of Sex” and “American Crime Story,” plays the lead character, Melissa Reed, a makeup artist who decides to come forward as the daughter of the Happy Face killer to save a man who is on death row for one of the crimes her father actually committed.

Dennis Quaid as...