[1] In "Visitor from New York", Hannah Warren is a Manhattan workaholic who flies to Los Angeles to retrieve her teenage daughter Jenny after she leaves home to live with her successful screenwriter father William.

Conservative, middle-aged businessman Marvin Michaels is the "Visitor from Philadelphia", who awakens to discover a prostitute named Bunny unconscious in his bed after consuming a bottle of vodka.

[3] The play's national tour, lasting from Oct. 1, 1977-June 3, 1978, starred Elizabeth Allen as Hannah, Diana, and Gert; Robert Reed as William, Sidney, and Stu; Warren Berlinger as Marvin and Mort; Patti Karr as Millie and Beth; and Bea Swanson as Bunny.

In his review in The New York Times, Clive Barnes wrote "For those of us who imagine Los Angeles as nothing but a long street in desperate search of a parking lot, Neil Simon's California Suite which opened most joyously and triumphantly at the Eugene O'Neill Theater last night, will come as a vast relief.

The cast includes Alan Alda, Jane Fonda, Walter Matthau, Bill Cosby, Richard Pryor, Elaine May, Maggie Smith, and Michael Caine.