A bear named Drum frequently appeared in scenes requiring the bear to enter water. Drum's coat was brown and had to be spray-painted to match the black coats of the other bears playing Ben. In the 1980s, Dennis Weaver recalled that a bear named Hammer, who occasionally misbehaved on the set, was used for bear scenes involving water. Other bears reportedly used included Smokey, Oscar, Baron, Tudor, Virgil, and a bear (identity unknown, possibly Hammer) with a tendency to fight who was used for bear fight scenes. Bear trainer Tuffy Truesdell, who owned nine bears including the elder and younger Victor the Wrestling Bear, also claimed that his bears did "most of the stand-in work" for the TV series.