Gene M. Cousineau is a main character in Barry. He was portrayed by Henry Winkler.
Cousineau worked as an acting teacher in Los Angeles who eventually meets and mentors Barry Berkman, helping him become a better person until Cousineau learns the truth of Barry's actions in L.A.
Sorting fictional characters by their first names, not including actors or anything. Since somebody has decided to exactly copy this story just know that this is the original, and some people need to get some creativity