Coutu

Coutu was a Paradan, who in the 2370s, opposed his people's government, and thereby functioned as a member of the Parada rebellion during the Parada Civil War.

During preparations for peace talks, Coutu discovered that the Paradan government was trying to sabotage the talks. He learned they had kidnapped Miles O'Brien and replaced him with a replicant whose mission was to kill the rebel leaders at the peace talks. Coutu alerted Starfleet and helped foil the plot. 

Coutu