Imry Florent

Imry Florent is a minor character in the second season. He is played by guest star Gordon Mahn and only appears in "Blackwater." Ser Imry Florent is a member of House Florent and brother of Queen Selyse, the wife of King Stannis I.

Background
Imry Florent is a member of House Florent of Brightwater Keep, a noble house sworn to House Tyrell of the Reach. However, due to Selyse's marriage to Stannis, the Florents have declared for Stannis in the War of the Five Kings

Season 2
Ser Imry accompanies Stannis aboard the King's flagship, the Fury. After much of Stannis' fleet is destroyed with wildfire, Stannis orders his forces to disembark. Ser Imry warns Stannis that hundreds will die trying to reach the shore. The King replies that it will actually be thousands, but is the first to climb down to a ferry boat.

In the books
In the Song of Ice and Fire novels, Ser Imry Florent, like the rest of House Florent, declares for Stannis after the death of Renly Baratheon. He's given command of Stannis' fleet as Lord High Captain and leads it blindly to Blackwater Rush instead of sending scouts like Ser Davos advised. Imry dies When the fleet falls in Tyrion Lannister's trap.