Colin Baker – 77

Doctor Who, the BBC TV series, is the grandfather of the sci-fi genre, as its debut dates back to 1963. Colin Baker had the chance to become the sixth incarnation of the Doctor, although he only played the character from 1984 to 1986. Before his stint on the show, he played Paul Merroney in the drama series The Brothers between 1974 and 1976. Baker also starred in movies like The Harpist (1999) and The Asylum (2000). When he participated in the 12th series of I’m a Celebrity…Get Me Out of Here!, the now 77-year-old English actor placed 8th out of 12 stars on that season.