Idrin

Idrin was an Alpha-Hirogen hunter who ordered USS Voyager to discontinue using their relay network to send messages to home. During The Doctor's mission to the USS Prometheus after transporting through a Hirogen relay network, Idrin ordered the Voyager to leave. Seven of Nine gave a shock to the Hirogen that enabled the Doctor to return to Voyager. 

He later captured Tuvok and Seven of Nine as they were trying to download messages from Starfleet from a Hirogen relay station in 2374. Idrin decided to gut the two and use their skeletons as trophies. The starship USS Voyager located the Hirogen ship and by boosting the effect of the quantum singularity that the Hirogen's used as a power source, they were able to beam Tuvok and Seven aboard Voyager, as the Hirogen ships fell into a black hole. 

Idrin