Killer whales never actually kill humans. The four documented occasions took place with captive orcas. One of them killed three people. His name is Tilikum. He is still alive and imprisoned

Nootka IV is another captive orca. She and her prison-mates Tilikum and another female orca took part in one of the murders.

Binky was a captive polar bear who attacked humans. His prisoners described him as "playfu" character.