Sander's career begins in the 1970s with main characters in series The Siege of Golden Hill (1975) and A Bunch of Fives (1977). During the first half of the 1980s, he only could work as a recurring character in another TV series, Angels (1982), and then work in a minor role in TV movie Monsignor Quixote, starring Alec Guinness. Sanders acted then in guest appearances for the rest of the 1980s, and in minor roles in movies like Dead Lucky and Bellman and True. Sanders worked on non-blockbuster movies, including TV Witchcraft, and making guest appearances in different TV series, of which is of notice Merry Christmas, Mr. Bean. In 1999, Sanders voiced Neimoidian lieutenant Daultay Dofine for The Phantom Menace; however, Dofine's character would be played by a different actor on-screen,Alan Ruscoe who also played Bib Fortuna and Plo Koon. On the same year, Sanders played another voice for Disney's TV movie Tarzan (also featuring Brian Blessed). For Tarzan, Sanders voiced a baby baboon. Since then, Sanders seems to have returned to his usual guest appearances for TV, as he did in Two Thousand Acres of Sky.