Heidi Julian was a notable comedian.
In 2365, Data attempted to located a comedian to help him better understand the concept of "what is funny?". Julian was among the the holodeck program files that were contained aboard the USS Enterprise-D. The program list code for this comedian was EQ-45932. (TNG: "The Outrageous Okona")
The comedian was never mentioned in dialog; this name came from a list of comedians.
This character was named after production assistant Heidi Julian. (Star Trek: The Next Generation Companion)
In the remastered version of the episode, Heidi Julian was changed to Doug Drexler.