text: Cast Varian (Jared Martin): "A man from the 23rd century possessing awesome powers", Varian generally uses a kind of crystalline "tuning fork" device called the Sonic Energizer through which he focuses his thoughts into what is described as a sonic manipulation of matter.  The device is completely useless in anyone else's hands, and seems capable of a huge variety of tasks, from opening doors to disrupting electrical systems to large scale acts of destruction, as well as its apparently intended function as a diagnostic and healing device. Following the departure of Professor Paul Jordan at the end of the pilot film, Varian takes over as de facto leader to the travelers and adopts a parental role over Paul's teenage son, Scott (most notable in episodes such as "An Act of Love" and "Turnabout").
  Scott Jordan (Ike Eisenmann): "The 13-year-old son of a famous scientist", Scott has an excellent knowledge of Earth history and events, but is still young and has much to learn.
  Dr. Fred Walters (Carl Franklin): "A young doctor just out of medical school" whose impulsive and rather hot-headed nature acts as a counterpoint to the calm, pacifistic Varian.  A friend of Scott's father and the only other member of the group from the same time period, the athletic black physician takes the role of protective "older brother" with the young teen.