Captain Blackwood was a 24th century Starfleet officer and commanding officer of the Federation starship USS Tombaugh.
According to Ensign Stone's personal log of stardate 52188.7, Captain Blackwood ran a tight ship and took special pleasure in tormenting new recruits. The first officer felt his attacks were nothing personal.
According to Seven of Nine, he and his ship were assimilated by the Borg in 2362. (VOY: "Infinite Regress")
This character was only mentioned in dialogue.