Over the course of the show, Alex is abducted and held hostage 22 times, shot 3 times, and drugged once.
Cordell Walker was a contemporary Texas Ranger. In real life, Chuck Norris (along with his brother, Aaron) is also a Texas Ranger.
When meeting a stranger he doesn't like, Walker doesn't take off his hat, or shake the guy's hand. For example, when he's having a conversation with a millionaire racist in Walker Texas Ranger 3: Deadly Reunion (1994), and when he's speaking with a racist Army Captain in season five, episode two, "Patriot".
The majority of the series was filmed around Dallas and Fort Worth, Texas. Many locals were cast as extras, and some even had speaking roles.