Those who regularly speak in front of others--actors, public speakers, politicians and TV news personalities--commonly experience stage fright. While it may seem counter-intuitive, repetition and familiarity may, in this case, actually be the instigating factor in creating a sense of dread or anxiety in this group. Certainly no one is perfect, and the chances are likely that, if an actor, politician or talk show host has been speaking before others for a long time, she might have a fear of repeating past mistakes, flubs or mess-ups. This may be triggering symptoms of stage fright.
Both those who have spoken public in the past and those who are brand new to it can experience an anxious sense of dread and foreboding when preparing to perform, lecture or submit to an interview in front of others. This sort of stage fright can be born out of a need to be in control of events. In this case, no matter how prepared one is, the sense that something horrible could happen is acute. If you find yourself experiencing a racing heart, breathing difficulty or nausea, you may benefit from realizing that your fear is actually based upon the unknown and might benefit from taking your attention off what "if" and putting it on what "is."
Those who are speaking in front of others for the first time might be considered the most "natural" sufferers of stage fright. Being a newbie at any endeavor can cause anxious feelings in even the most accomplished and self-assured people. To address stage fright based upon inexperience, you might take classes or participate in rehearsals with a coach or director. Preparation in advance of the event can do much to build confidence in performing or speaking before others, but it is the repetition of the act itself that will do the most to relieve stage fright based upon inexperience.
Those who have performed for a long time as well as those who have taken the stage as public speakers for many years, may, ironically, find themselves newly suffering from stage fright. Most people who speak before others need to prepare in some way in advance--learning lines, writing and memorizing a speech or being prepared with research and other information. However, for some people, over time, the feeling of confidence and familiarity can cause lapses or negligence when it comes to preparation. In these cases, on the day of an event or performance, it is sometimes those with the longest resume who have the worst case of stage fright.