If you mean commanding officer as in James T. Kirk's superior, it would have been Captain Christopher Pike. If you mean Kirk's second in command (first officer), it would have been Spock.
In the 2009 movie Star Trek, Captain Christopher Pike made Spock acting captain and James T. Kirk the acting first officer before he (Pike) was taken captive by the Romulans. Later in the film, Kirk provokes Spock to attack him, which soon after Spock is forced to relinquish his command due to being emotionally compromised. Kirk then assumes the role of captain, and Spock becomes his first officer.
In the sequel Star Trek Into Darkness, Kirk is demoted for violating the Prime Directive and (now Admiral) Pike becomes commanding officer of the USS Enterprise. He then takes in Kirk and makes him first officer. Kirk later regains the role of captain after Admiral Pike was assassinated.
Captain James Kirk's middle name is Tiberius.
Winona Kirk is James T. Kirks mother and would have been Ms. Kirk.
a cheap chief
James T. Kirk - Union officer - was born in 1826.
James T. Kirk - Union officer - died in 1886.
James T. Kirk, Captain, United Federation of Planets, is the commanding officer of the U.S.S. Enterprise N.C.C. l70l if I recall the serial correctly.
In the Original Series, the CO (commanding officer) is the captain of the ship, Captain James T. Kirk. However, Spock is of the rank commander, if that's what you were asking.
yes
He was known by his troops as Uncle Billy. As a child and young man, before he became a commanding officer, his nickname was "Cump".
Leonard McCoy (Bones) Deforest Kelly Uhura Nichele Nichols Spock Leonard Nimoy Pavel Chekov Walter Koneig Hiraku Sulu George Takei James T Kirk William Shatner Scotty James Doohan
James T. Jones was born in 1832.
William Shatner as James T. Kirk, commanding officer of the USS Enterprise.James Doohan as Montgomery Scott, chief engineer.DeForest Kelley as Leonard McCoy, chief medical officer.Walter Koenig as Pavel Chekov, navigator, & security/tactical officer.Nichelle Nichols as Uhura, communications officer.Leonard Nimoy as Spock, first officer and science officer.George Takei as Hikaru Sulu, helmsman