Martin Finnegan was one of the minor enemies in BioShock. He was killed by the main protagonist, Jack. He was killed in Fort Frolic, in Poseidon Plaza, in the frozen tunnel. He was killed in 1960.
Very little is known about his personality so far, but the most say that he betrayed Sander Cohen. His hair color is brown, he has brown eyes. He is a Houdini Splicer. His attack is ice blast, which freeze you to ice.