how old was kaley cuoco when big bang started

Kaley Cuoco was 21 years old when The Big Bang Theory first started airing in 2007, since she was born on November 30, 1985.

Quick Scoop: How Old Was Kaley Cuoco?

When The Big Bang Theory premiered in September 2007, Kaley Cuoco (Penny) was 21, turning 22 that November.

The character Penny is written as a young aspiring actress and waitress in her early 20s, so Kaley’s real age lined up closely with Penny’s on-screen age.

A Tiny Timeline

• Born: November 30, 1985, in California.

• The Big Bang Theory premiere: September 24, 2007.
• Her age at the start: 21 years old.
• The show then followed her through her late 20s and early 30s as it became one of TV’s biggest sitcoms.

“How old was Kaley Cuoco when Big Bang started?”
Fans often ask this in forum discussion threads when rewatching Penny’s early seasons and comparing her age to the guys on the show.

TL;DR: Kaley Cuoco was 21 when The Big Bang Theory started, turning 22 a couple of months into that first season.

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