After World War II he returned to America, where he established himself as an actor, appearing in Broadway productions and musical theatre.

On US television he appeared on The Phil Silvers Show, in a single episode of Dark Shadows in 1968 (playing Sheriff George Patterson) and on Our Five Daughters.

Sandor later travelled to Australia (where he took up citizenship), to appear in a touring production of Plaza Suite, the play The Best Little Whorehouse in Texas (with Lorraine Bayly and Mona Richardson[3]), and he appeared in the film Nickel Queen, whilst doing television work with roles in Number 96, Division 4, Boney and The Evil Touch.

However, he would become best known for his long-running role as the "dandy" surgeon Dr. Raymond Shaw in the Australian television soap opera The Young Doctors.

An original cast member of the serial, he continued in the role for six years, leaving around 20 episodes before the programme's conclusion due to ill health.