Credit: Kevin Winter/Getty Images Photo: Nathan Fillion and Lea Michele Smile in the Press Room at the Golden Globe Awards on Jan. 13, 2013

If you were headed to Texas to see Castle star Nathan Fillion at Dallas Comic Con this weekend, then we have some sad news to report. According to Nathan’s Twitter, he’s come down with a mysterious illness (most likely pink eye) that will prevent him from heading to the Lone Star state.

Still, our favorite lovable nerd was kind enough to give fans a heads up about his ailment in letter form, tweeting,

“Dear Dallas, I hate to do this last minute, but I have to cancel. I'd give my right eye to be there, but it's swollen and gross. Apologies.”

Even though we love Nathan with all our heart, we’d rather not see him when he’s “swollen and gross.” But one person that will be missing the Castle star is none other than the man, the myth, the legend, William Shatner.

“Get that eye well my friend. We'll see each other soon. I promise. MBB,” Shatner tweeted. Nathan later added his “sincere thanks.”

Hey, it’s not everyday you get a Twitter shout out from Mr. Shatner!

Are you bummed that Nathan won’t be in Dallas this week? Tell us below!