Two Who’s That Girl star cards are still alive: Marlo Thomas and Bonnie Scott. The rest of the main credited cast shown in the available source are reported as deceased.

Who’s still alive

  • Marlo Thomas, who played Ann Marie, is listed as alive in June 2026.
  • Bonnie Scott, who played Judy Bessemer, is also listed as alive in June 2026.

What that means

That leaves 2 surviving star cards from the core cast referenced in the source. The source also notes that the other principal and supporting cast members it covers have passed away.

TL;DR: 2 are still alive, based on the source available here.