Along with J16 Slick, Spock is one of the female Southern Residents that was briefly listed as a male in older ID guides. Both females have taller fins, leading reseachers to believe they might have been sprouter males until they returned with their first calves.‍‍‍‍

Usually, Southern Residents enter and exit the Salish Sea through the Strait of Juan de Fuca, but occasionally they come over the "top" of Vancouver Island and down Johnstone Strait entering the Strait of Georgia from the north. Deadhead was part of a group that returned to inland waters this way several summers in a row, most recently in 2021.

Comet is one of a few Southern Resident males whose fins have not grown to their expected height. At over 20 years old, his fin still looks like that of a young sprouter male.

Uhura was the first calf born into K-Pod after an astonishing 11 year gap. As a female, she is a key hope for the future reproductive future of K-Pod.