Richard Benjamin's role of starship commander Adam Quark is his first television series since the critically acclaimed comedy "He and She," broadcast on CBS from Sept. 6, 1967 to Sept. 18, 1968.

Benjamin has an impressive list of film credits, including starring roles in "Goodbye, Columbus," "Diary of a Mad Housewife," "Catch-22," "The Marriage of a Young Stockbroker," "The Sunshine Boys,"  "The Steagle," "Portnoy's Complaint," "Westworld" and "The Last of Sheila."

A good math student at the High School of Performing Arts in. New York City, Benjamin was considering a career as an engineer until his parents insisted he at least try for a career in the theater.

Richard enrolled at Northwestern University to study drama with Alvina Krause, and earned money as a disc jockey. In the summertime, he worked as a manager in a department store and as an NBC page in New York.

In his senior year at Northwestern, he was named "Best Actor." The winner of the "Best Actress" award that year was Paula Prentiss. Benjamin and Prentiss were married in New York after graduation and were soon off to Europe on a combined honeymoon/promotional tour for one of Paul's films.

Benjamin toured in the national company of "Baref6ot in the Park," and so impressed author Neil Simon and director Mike Nichols, that he was named director of the London stage version. After that, he co-starred in the road company of "The Odd Couple" and in 1966 received his first Broadway role in "The Star Spangled Girl."

Popular television commercial and print advertising models as well as noted cover girls, identical twins Tricia and Cyb Barnstable are starring in their first television series -- or first acting role ever -- as Betty I and Betty II in "Quark."

As co-pilot and co-co-pilot of a 23rd century starship, one of the Bettys is a clone (reproduced through non-reproductive cells) of the other, but both Bettys believe they are the original.

Tricia and Cyb were born in Louisville, Kentucky.  They attended Seneca High School and the University of Kentucky, where they graduated with degrees in speech and theater.

In 1971 their mother entered them in a beauty contest, so they drew straws to see who would enter.  The "loser," Tricia, entered the contest and was named Miss Kentucky, and went on to become runner-up in the Miss USA pageant.

Tricia and Cyb have been seen in commercials as the Doublemint twins and the Toni twins.  They have appeared on the covers of ten national magazines, including Good Housekeeping and Redbook.

Show business beckoned in 1972 when they accepted Bob Hope's invitation to sing and dance on his last Christmas tour of Vietnam.

Conrad Janis, one of television's most familiar faces, portrays the chief architect of Perma One in "Quark," NBC-TV'S new science-fiction comedy series.

Janis has been an actor since he was a teenager, when he made his professional debut in the Broadway production of "Junior Miss" in 1942. Since that time he has had numerous guest roles in television, motion pictures and theater.

His most recent film credits include "The Duchess and the Dirt-water Fox" and "Roseland," but his film career began in 1945, when he appeared in several movies with Shirley Temple.

Stage credits include "Same Time, Next Year," "The Front Page," Sunday in New York" and "Visit to a Small Planet."

Logical, emotionless, a walking computer.  Those are three ways to describe the character Richard Kelton plays on "Quark."  There's one other way -- he's more vegetable than animal.  To be precise, he's a Vegeton, but he gets along with people fairly well.

Kelton remembers seeing "Rebel Without a Cause,"  "East of Eden" and "Giant"  when he was growing up in Oklahoma, and cites James Dean the main influence on his decision to become an actor.

After studying drama at the University of Kansas, Kelton moved to Los Angeles and had guest roles in numerous series, including "The Waltons", "Mission: Impossible" and "Gunsmoke."  Kelton was then cast in a Broadway revival of "Who's Afraid of Virginia Woolf," directed by Edward Albee.

After touring the country with Katharine Hepburn in "A Matter of Gravity," Kelton returned to Los Angeles and had a role in "Charlie's Angels."  When the producers of  "Quark" were looking for an actor to portray a Vegeton, they saw Kelton in  "Charlie's Angels" and cast him in the role.

Most people have never seen Bobby Porter when he acts, and he continues that tradition by playing Andy the Robot in "Quark."

Bobby is usually inside a costume.  In "Quark," he is inside a mechanical construction built from spare parts.

He has been in 11 Disney films, and has dressed in various Disney character costumes to entertain children at Disneyland for the past seven years.

Bobby was Roddy McDowall's son  in "Battle for the Planet of the Apes," and guest starred with McDowall in NBC-TV's "The Fantastic Journey," when he played a small animal from another planet.

Bobby has also done a lot of stunt work, in films such as "The Poseidon Adventure," "Earthquake" and "Viva Knievel."  For a change, he was seen as himself in the television film, "something for Joey," and will also be himself in the film "Day of the Animals."

Thomerson attended St. Augustine High School is San Diego, Calif. After three years with the ski patrol at Lake Tahoe and a stint in the Army, he met actor Anthony Zerbe at a Shakespeare festival in San Diego.

Zerbe encouraged Thomerson to study acting with Stella Adler in New York, so Tim travled to Manhattan and worked with Adler for three years.

Returning to Hollywood, Tim guest starred in "Laverne and Shirley," "City of Angels,"  "Harry 0" and "Mannix," as well as Norman Lear's "All That Glitters" and "A Year at the Top."  He starred as Barney in the NBC program development project, "Betty and Barney," and appeared in two television series, "Hustling" and "Shadow in the Streets."

His film credits include "Car Wash," "The All American Girl" and "Which Way Is Up."

Thomerson is also a stand-up comedian, and has appeared on "The Midnight Special," "Don Kirshner's Rock Concert" and "The Merv Griffin Show."