A Manhattan playwright unexpectedly starred in his own drama when he helped his wife deliver their baby girl in the back seat of a speeding taxi.

Addison Proctor, 36, and his wife, Sally Schuiling, 35, were rushing from their Upper West Side apartment to NYU Medical Center when the baby’s head popped out.

With one more push, Alice Adeline Proctor entered the world.

“I scooped her up and put her on my chest, and she was breathing right away,” Schuiling said of the healthy baby, the couple’s first child.