Humor has been a through line — and, at times, a lifeline — for Kristen Johnston. The 57-year-old comedic actress has been making audiences laugh for decades, most memorably in TV's 3rd Rock ...

Johnston plays Leanne Morgan's sibling in the upcoming Netflix sitcom Leanne. She says the show is an "exploration of women in their 50s — and sisterhood." (Patrick McElhenney/Netflix) ...