"#stoked to shoot an #episode for @bullcbs this week," he tweeted. "Also don't forget to catch @thegoodfightcbs this Sunday! Clothes ON this time."
Gregory, who starred on OLTL from 2009 to 2012, will play a character named Kelvin in his Bull episode, titled "Bring It On."
Starring NCIS alum Michael Weatherly, Bull was inspired by the early career of Dr. Phil McGraw, the founder of one of the most prolific trial consulting firms of all time. Brilliant, brash, and charming, Dr. Bull is the ultimate puppet master as he combines psychology, human intuition, and high tech data to learn what makes jurors, attorneys, witnesses, and the accused tick.
What do you think of Gregory landing a guest starring role on Bull? Have you tuned in to the CBS series? We want to hear from you -- and there are many ways you can share your thoughts.