Donna Reed was 25 years old when she filmed and released her role as Mary Hatch Bailey in It’s a Wonderful Life (1946).

How that age is calculated

  • Donna Reed was born on January 27, 1921, in Denison, Iowa.
  • It’s a Wonderful Life was released in 1946, meaning she was 25 for most of that year, including the film’s original release period.

Quick Scoop

  • Birth date: January 27, 1921.
  • Film release year: 1946 for It’s a Wonderful Life.
  • Her age in the movie: 25 years old.

In other words, when audiences first saw Mary Hatch Bailey on screen, Donna Reed was in her mid-twenties, playing a character who ages from a young woman into a devoted wife and mother across the film’s timeline.

TL;DR: Donna Reed was 25 years old in It’s a Wonderful Life.

Information gathered from public forums or data available on the internet and portrayed here.