Born in London's East End, Barry's illustrious career began at the tender age of 15 when he was awarded a full scholarship to the prestigious Royal Academy of Dramatic Art. Following his graduation, he embarked on a series of successful stage runs in London's esteemed West End and in various theatrical productions throughout the United Kingdom, showcasing his exceptional talent to audiences nationwide. Additionally, he made notable appearances on the BBC's earliest live television broadcasts in the late 1930s, solidifying his status as a rising star in the world of entertainment.
As his career continued to flourish, Barry relocated to Canada in the early 1950s, where he remained an active presence in the country's vibrant theatrical scene. He worked extensively in live theatre, contributed to CBC Radio, and was a prominent figure in the premiere CBC-TV broadcasts, leaving an indelible mark on the Canadian entertainment industry.
Throughout the 1950s and 1960s, Barry became a staple in numerous anthology and dramatic series, cementing his reputation as a versatile and accomplished actor. However, it is arguably his iconic TV roles as "Lt. Philip Gerard" in The Fugitive (1963) and as "Prof. Victor Bergman" in Space: 1999 (1975) that have had the most lasting impact on North American audiences.