Matt Damon and David Letterman made a cameo in "The Gilded Age" premiere that fans miss with a blink of an eye.

Matt Damon and David Letterman snuck into The Gilded Age premiere as extras. Here's how the six-second cameo happened.

The Gilded Age Season 4 surprised fans with two unexpected appearances. Matt Damon and David Letterman made a brief cameo.

David Letterman and Matt Damon made quick appearances as extras in The Gilded Age Season 4 premiere, leaving fans stunned by ...

It took a lot of emails to make it happen.

SPOILER ALERT: The following reveals major plot points from HBO’s The Gilded Age’s Season 4 premiere. Surprise! The Gilded ...

Here's how and why Matt Damon and David Letterman appeared as background actors in the Season 4 premiere of HBO's "The Gilded ...

The actor and talk show icon appeared in the HBO series' fourth season premiere for a few seconds, fulfilling a lifelong dream for Letterman ...

David Michael Letterman, born on April 17, 1947, in Indianapolis, Indiana, is an iconic American television host, comedian, writer, producer, and auto racing team owner, widely recognized for his ...

Matt Damon and David Letterman made a surprise cameo appearance in the season 4 premiere of HBO's hit period drama 'The ...

Matt Damon and David Letterman make a blink-and-you'll-miss-it cameo in the Season 4 premiere of "The Gilded Age." Here's why ...

And despite bringing a bit of star power to “The Gilded Age,” Damon and Letterman do not have any lines during their ...