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Mr. Small lives under a daisy in Mr. Robinson's garden. He eats very enormous meals, and talks to Walter the Worm about getting a job. He meets Mr. Robinson who tries to get him a job. They try putting mustard in mustard jars, which is not good. They try putting matches into matchboxes, no good either. The best job for somebody so small is writing children's books, and Mr. Small meets a friend of Mr. Robinson who writes children's books (referring to Roger Hargreaves), and writes a book all about himself. This Mr. Men book breaks the fourth wall.
In the 2008 TV series The Mr. Men Show, Mr. Small is considerably larger and is an orange color and his shape is almost similar to Mr. Rude's.and a tall black top hat (similar to Abraham Lincoln's) replaces his hat, and wears a pair of white sneakers. He has a Welsh accent in the U.S. version, and a typically English accent in the UK. His favourite food is liverwurst sandwiches. He also is able to speak in French and Spanish. His best friend is Mr. Nosey, and they live together in a observatory with a large telescope coming out from the roof. He is apparently also small enough to fit under Mr. Nosey's arm. In the US and UK Versions, he is voiced by Phil Lollar and Keith Wickham. He is first seen in Physical.