New Delhi, July 9 -- Tracee Ellis Ross is starting to notice the small things that bring her happiness: The satisfying click of a curling iron, say, or the taste of olives. It's sort of her job right now.

The actor and producer is making her Broadway debut starting Tuesday in "Every Brilliant Thing," one of the more uplifting and joyful plays this summer, even if it delves into the subject of depression.

It's the story of a narrator who compiles a list of the things to prove to his or her depressed mother that life is worth living - like ducklings, spaghetti Bolognese and dancing in public. No. 999,996 is: "Peeling off a sheet of wallpaper in one intact piece."

"What is incredible when you start doing this is that you really do start t...