8.7
/10
Mary Lightly is a fictional character portrayed by Jimmi Simpson in the TV series Psych.
In the first episode they appeared in, titled An Evening with Mr. Yang (season 3), they were 33 years old.
They appear in 4 episodes out of a total of 120 aired

Mary Lightly

by Jimmi Simpson

character

Episodes4

  • 9.4
    /10

    An Evening with Mr. Yang
    episode S3.E16 february 2009
    Serial killer Mr. Yin Yang who murdered 6 victims in 1995 resurfaces to play his cat-and-mouse clues games as he did with police officers back then. He has never been defeated and chooses Shawn as his next opponent and the clues come fast and furious to save a young woman. Each clue has to do with something in Shawn's past. Shawn also attempts to rekindle an old high school romance.
  • 9.4
    /10

    Mr. Yin Presents
    episode S4.E16 march 2010
    A year after the arrest of Mr. Yang, a new killer starts playing games with Shawn and his friends - her partner, Mr. Yin.
  • 8.7
    /10

    Yang 3 in 2D
    episode S5.E16 december 2010
    A woman tells the police she was kidnapped by Yin. They do not believe her but Shawn does. When she is missing again, Shawn and Gus think she has been kidnapped again. Yang is released from the psychiatric prison to help find him.
  • 8.2
    /10

    Psych: The Musical
    episode S7.E15 december 2013
    Shawn and Gus dive into a world that's equal parts mystery and melody to track down a mad playwright who burnt down a theater after locking a critic inside.