Regarding the "other captain": Arkhipov was a Chief of Staff of the Submarine Brigade, and thus wasn't in charge of the ship, but, being in a more senior position than the captain, managed to calm him down, while the latter was really ready to launch the torpedo.
dmitryredkin t1_jd7ac32 wrote
Reply to comment by Benu5 in Vasili Arkhipov (1960's). During the Cuban Missile Crisis a false alarm of nuclear war almost made a Soviet nuclear submarine near the U.S launch it's nukes. However the order for a launch needed 3 approvals and Arkhipov refused. by AdAway2224
Regarding the "other captain": Arkhipov was a Chief of Staff of the Submarine Brigade, and thus wasn't in charge of the ship, but, being in a more senior position than the captain, managed to calm him down, while the latter was really ready to launch the torpedo.