Barney shares many of Fred's interest such as golf and bowling, and is also a member of "The Loyal Order of the Water Buffaloes." Though Fred and Barney frequently get into feuds with each other (usually because Fred's short temper), their deep fraternal bond remains evident.
Barney Rubble has blonde hair and wears a brown shirt which hangs down to his knees. He wears no pants or shoes. He also has a change of appearance in The Flintstone Kids, but there are no changes in how he looks except that his brown shirt is a darker tone than originally.