Remedios was born in Liverpool and began his working life as a docker, but studied singing with Edwin Francis, who also taught
Rita Hunter, and then at the Royal College of Music.
He sang a wide variety of roles with the Sadler's Wells Opera – the forerunner of English National Opera – including Alfredo,
Faust, Samson, Bacchus and Max.
He is especially remembered for his performances in Wagner, especially as Siegfried in the Glen Byam Shaw production of The Ring,
conducted by Reginald Goodall. These performances were recorded in 1973, preserving Remedios' partnerships with Norman Bailey
as Wotan and Rita Hunter as Brünnhilde. He was also memorable as Walther von Stolzing in the 1968 Sadler's Wells
Mastersingers, also conducted by Reginald Goodall.
Most remarkable of all was the occasion when Remedios, despite a slight chest infection, and due to the illness of another singer,
sang the roles of Siegmund, the title role in Siegfried, and also Siegfried in Götterdämmerung, within a complete cycle of
the Ring during one week.
Remedios sang the role of Mark in the first recording of Tippett's The midsummer marriage.
Remedios performed in many of the world's leading operatic venues, including the Met in New York, Seattle, Frankfurt,
San Francisco and Buenos Aires. He retired to Australia in 1999 and died there on 11 June 2016.
His brother Ramon also had a singing career as a tenor; on at least one occasion they were both in some performances by English
National Opera of The Mastersingers.