 Rees continued his career throughout the 1970s appearing in popular television programmes including "", "The Sweeney", "The Sandbaggers" and "Van der Valk".He also made his final appearance for "Doctor Who" when he appeared in "The Seeds of Doom" alongside Tom Baker.He was to appear with Baker again in 1982 when he took the part of Inspector Lestrade in the television mini-series of Sherlock Holmes classic "The Hound of the Baskervilles".