The Secretary of Straleb in The Outrageous Okona, who accuses Thadiun Okona of stealing the Jewel of Thesia, a national treasure actually taken by his own son Benzan.
Kushell is the Secretary of Straleb, one of the two worlds of the Coalition of Madena. He appears in the second-season episode The Outrageous Okona, set in 2365, with his son Benzan at his side.
He intercepts the Enterprise to demand the freighter captain Thadiun Okona, whom he accuses of stealing the Jewel of Thesia. His claim collides with that of Debin of Atlec, who wants Okona for getting his daughter with child, and Picard finds himself refereeing a dispute between two ships that pose no threat to his own.
Benzan finally confesses that he is the father of Yanar's child and that he took the jewel himself as a pledge of marriage, with Okona acting as go-between. Kushell's outrage gives way to bickering with Debin about the wedding.