Co-Co's species
Co-Co's species was a humanoid species with large eyes and a head ridge.

Several members of this alien species were present on Starbase Yorktown in 2263, including two separate females (one of whom wore an operations division  who were each walking with a friend through an exterior thoroughfare in the starbase while the  made its way into the facility.

Wearing a different outfit, one of these aliens, Co-Co, later attended 's thirtieth birthday party, indoors at the starbase. ()

Alternate reality
Unnamed species
Memory Alpha articles named from supplementary resources