Thea Holme was the daughter of architect Philip Johnston.
She studied at the Slade and later at the Central School of Drama. She made her first stage appearance in 1924 and in the 1930s whe was in repertory at the Oxford Playhouse with her husband Stanford Holme as producer.
She was described as 'a captivating actress' and The Times obituary stated, 'hard indeed of heart was the undergraduate who did not fall madly in love with this most elegant beauty with the wondering eyes'. The same obituary described the couple's career in the theatre with 'The Holmes were prepared to experiment with new plays by authors known or unknown, with pantomime as well as with the classics.'
She toured with CEMA during World War II and later lived in the Carlyle's house in Cheyne Row, Chelsea. This spawned her book 'The Carlyles at Home' (1965).