Finn was a deeply committed man, devoted to his cause of political autonomy for his people from the Rutian government, even once comparing himself to Earth's George Washington. He was also seen to have religious tendencies, and he often muttered prayers for his people. Apart from his skill as a very effective terrorist, he was also a gifted artist. Finn also had a son, until he died in detention.
In 2366, Finn saw an opportunity in the arrival of the USS Enterprise-D to both kidnap Doctor Beverly Crusher, in the hopes that she could help them, and to draw the Federation into the conflict. He further ordered his men to set an explosive on the warp core in order to destroy the starship. Geordi La Forge was able to beam it into space, but Finn's men took Captain Picard hostage as well.