Green is a fictional character created by H. P. Lovecraft, who makes his only appearance in the 1928 short story "The Call of Cthulhu". He is the first mate of the Emma of Auburn. En route to Callao, the Emma encounters the heavily armored steam yacht Alert, who orders the schooner to turn back. Captain Collins refuses, leading the Alert to fire upon the Emma using a brass cannon. In retaliation, the crew of the Emma manage to board the Alert and slay all of its members, although Green and Collins are killed in the battle, leaving Second Mate Gustaf Johansen in command of the crew.