Dennis Haysbert -- Despite Conan gag, not on Twitter

With much fanfare and an over-the-top voiceover that called host Conan O'Brien "CoCo," "The Tonight Show" introduced a new segment Tuesday called "Twitter Tracker."

"Don't spit on the twit," the monster truck-like voiceover commanded. "Don't crap on the app. Don't put the Twitter in the ..." You get the idea. The madcap segment, which included the Twitter bird's head being sliced off, led up to a "Tweet of the Week" purportedly from "The Unit" star and Allstate pitchman Dennis Haysbert.

With all the build-up, surely this would be a 140-character masterpiece, a window into the soul of President Palmer. Or maybe this:

"Just saw the new Star Trek movie. Wow, really good."

Here's the thing, though: Dennis Haysbert didn't tweet that, and may not even be on Twitter. Someone with the screen name dennishaysbert does have a Twitter account, and it's accompanied by a picture of the actor, but it's never been used. (Which seems like a missed opportunity. Had "Dennis Haysbert" been watching "Tonight" Tuesday and responded to the TV shout-out, he could have picked up a ton of new followers.)