How old was Jason Segel in This Is 40?

Curiosity about a celebrity’s age during filming is more common than you’d think. Age can be a surprising factor in how we perceive talent and maturity. Here’s the answer to that particular curiosity.

In This Is 40, Jason Segel took on the role at the age of:

31 years old

That’s the confirmed age we calculated for the celebrity in that role.

This age was calculated based on the beginning of the release year of This Is 40:

January 1, 2012

And the day Jason Segel was born, which is:

January 18, 1980

Movies tend to be released within a year of filming, so Jason Segel may have been one year off from the listed age in certain scenes.