He joined the Navy and served stationed on Johnson Island as a communications officer in the Pacific Theater. After the war he appeared in several productions at the Pasadena Playhouse where he spent three years. There, in May 1947, he met Mark Miller, who had one of the lead roles in a production of Oh, Susanna. Nader was in the chorus. The two fell in love and established a household together. Miller had intended to go to New York to study opera but abandoned his plans in order to stay in California and help Nader launch his career. Miller took various jobs, including working as a carhop and a shoe salesman, in order to provide income while Nader established himself as an actor.

In January of 1951, Hudson was introduced to actor George Nader and his partner, Mark Miller. For the next thirty-four years, the three would be virtually inseparable. A seemingly endless parade of lovers, short-term boyfriends, and one-nighters would pass through Rock’s life, but Nader and Miller managed to provide him with something more enduring—a sense of continuity and a kind of surrogate family. 

By 1952 Nader was successful enough that Miller began working as his business manager. Nader played bit roles in Hollywood films, played in a TV show pilot opposite Celeste Holm  in 1950, his first film was Rustlers on Horseback  and was then costarred in his first major film, Monsoon (1952).

This led to several unbilled roles in a handful of movies that attracted the attention of director Phil Tucker who signed Nader for the lead in the infamous 3D thriller Robot Monster (aka Monsters from the Moon and Monster From Mars) (1953). Shot in only four days for a mere sixteen thousand dollars, it took in over a million dollars in its first run but also earned the dubious distinction of being named one of the fifty worst movies in history. It has become a cult classic.

In 1958 Nader decided to leave the studio and work freelance. On Television, Nader starred in three short-lived series: The Further Adventures of Ellery Queen (1958), The Man and The Challenge (1960) and Shannon (1961). When Nader starred with Loretta Young on her TV show Letter to Loretta, he was showered with fan mail, and Loretta signed him up for several more shows, - a record on her program (1953-1961). He also guest starred in episodes of Alfred Hitchcock presents.

Above right: TV's Shannon: an investigator of fraud, murder and espionage in the world of corporate America.

Nader and Miller would provide important support to Hudson, particularly in his final battle against AIDS, from which he died in 1985. Miller said they were called 'The Trio' but they never had sex and it was pure friendship, fueled by stories about each other's conquests. Hudson left most of his estate to Nader and Miller. Only in 1986 after the dead of Rock Hudson, Nader and Miller outed themselves. Miller said being outed wasn't the trio's greatest worry. When Rock died, with all the publicity, George and Miller said, "Well, they've outed us as gay, but not as Republicans." They believed that could hurt their career worse than being gay in Hollywood.

Nader and Miller recently completed a book called The Perils of Paul, about the gay community in Hollywood, which he did not want to be published until after his death.

Right: In april 2000 Nader was honored with a Jerry Cotton film retrospective in Titisee-Neustadt, Germany.

Nader's last public appearance was at the 1st Annual Palm Springs Film Noir Festival in May 2001 where he received a standing ovation following the screening of the British film Nowhere to Go, co-starring Maggie Smith.