Sir Hugh Irons

Sir Hugh Islands (or Irons) is the leader of the Round Table Conference and an ally of the Hellsing organization. Thirty years later, his grandson succeeds him as either the leader or a member of the roundtable.

Personality
Sir Hugh Irons is a rather calm yet stern individual, with an ability to remain cool in the face of danger. These aspects of his personality are seen in OVA II during the Valentine Brothers' attack when he keeps both himself and the others calm, and later on when he demands Integra take responsibility for the events that occurred on this day. He is also a very shrewd man, having come to the conclusion that Walter Dornez was the traitor among the Round Table solely on intuition and facts.

Valentine Brothers' Attack
In OVA II Sir Irons attends the Round Table Conference at Hellsing manor to discuss Integra's findings concerning the recent vampire attacks in England. It is during this meeting that Luke and Jan Valentine assault Hellsing manor, trapping the members of the Round Table inside. Irons remains in the conference room with the other members of the Round Table for the duration. He remains calm in the face of this threat and demands the same from the other members when Penwood begins to raise his voice. They remain there until Jan Valentine breaks in, pistols at the ready and mere moments after he opens the door, Jan is riddled with bullets from their combined volley.

In the aftermath of the Valentine Brothers' attack, Sir Irons belays an order given by Integra to Walter to put the ghoulish Hellsing forces down. He explains that as the leader of these men, it falls on Integra to put her troops to rest. He reprimands Integra for being unprepared, placing the responsibility for the state of the fallen soldiers on her shoulders. He instructs Walter to instead begin investigations into Millennium.

Attack on London
In OVA IX he is seen arriving somewhere outside of London with fellow Round Table member Rob Walsh, where they discuss the current whereabouts of the Queen and the state of London. The two begin speaking of a potential counterattack on vampires outside and within the city, and of a supposed 'Nuclear' solution. Conversation turns to the supposed traitor among the Round Table, and of how Irons vehemently defended Sir Penwood.

Sir Irons then speaks on something that had been bothering him about the subject. Upon the death of Arthur Hellsing, he warned Walter Dornez that Richard, Arthur's brother, would be willing to kill Integra to inherit the family title. He told Walter to keep eyes on both Richard and Integra; but, when Richard attempted to take Integra's life, Walter was suspiciously nowhere to be found. This leads him to the realization that all of the events leading up to Millennium's return originated with Alucard's reawakening by Integra, and that Walter had betrayed them all to Millennium back during the second World War.

30 Years Later
At some point between the defeat of Millennium and the return of Alucard thirty years later, Sir Irons died of natural causes.

Arthur Hellsing
Hugh Irons and Arthur were close colleagues with somewhat conflicting personalities. While Irons was all work and business, Arthur took an interest in chasing women and trying new things to complete missions, deploying the young Walter C. Dornez even against the suggestions and opinions of The Convention of Twelve.

Trivia

 * He and Arthur Hellsing are the only characters in the series who died naturally or by disease and were not killed by anyone.
 * In OVA II, it is seen that he wields a Webley Mk VI in combat.