Barney's interests included bowling, playing pool, poker, tinkering around in Fred's garage, and playing golf. He, like Fred, was also a member of the Loyal Order of Water Buffaloes lodge and its predecessor, the Loyal Order of Dinosaurs. He is also a talented pianist and drummer. He also was an inventor of a human-powered helicopter. Although clearly depicted as being in better shape than Fred, he is not shown to be quite as enthusiastic a sportsman as Fred is. This distinction can be attributed to Fred's fondness for food, though Barney is shown to be almost as capable of excessive appetite on a number of occasions.
- He is played by the late Mel Blanc, who's known for voicing Bugs Bunny and several other Looney Tunes characters.
- In the Latin American dub of The Flintstone Kids, he was voiced by the late Luis Alfonso Mendoza, who also voiced Winston Zeddemore in Ghostbusters 2 and The Real Ghostbusters, Leonardo in the 1987 Teenage Mutant Ninja Turtles show, the 1990 Teenage Mutant Ninja Turtles movie and Teenage Mutant Ninja Turtles 3, Metallo in Supergirl (Arrowverse), and Mad Hatter in Gotham.