Alien in corridor
This Night alien was discovered in a corridor aboard Voyager by Chakotay and Neelix. It started to attack the two but was stopped by Captain Janeway who fired at it. The alien escaped and was later transported back aboard one of their ships. (VOY: "Night")
It was discovered on the holodeck by Tom Paris and Seven of Nine who were both trapped in the holodeck program Captain Proton: Defender of the Earth. It attacked Paris but was wounded by Seven of Nine who shot at it. After Seven brought it to sickbay The Doctor was able to tell Captain Janeway that it was dying because of the pollution and the theta radiation in this area caused by the Malon.
The alien told Captain Janeway about the criminal activities of the Malon and asked for help. Janeway decided to help this species and brought this alien back to the rest of his species who beamed him back aboard one of their ship's. (VOY: "Night")