Pavel Andreievich Chekov was a Federation Starfleet officer who served as the navigator of the USS Enterprise (NCC-1701). (Star Trek)
Pavel Andreievich Chekov (Павел Андреевич Чеков) was a child prodigy and a Starfleet ensign for the Federation, assigned as a navigator to the USS Enterprise in 2258, at the age of 17. Originating from Russia, he spoke with a heavy Eastern European accent, which caused a problem when he had to voice input his authorization code "9-5-Victor-Victor-2".
Pavel Chekov was a Human man, a career Starfleet officer in the 23rd century. Chekov was the son of Larisa and Andrei Chekov, born in the year 2241.