Risra Ironback was an otter in The Bridge. He was like a brother to Adrian Greenlough, and frequently helped Adrian's mother, Iris. Risra was the first to notice Adrian's and Iora's connection, and he advised against it, however, when it became obvious that neither was going to listen, he stepped out of their business. Risra was the one to tell Iris about their relationship, forcing the two to run away.
When Adrian and Iora left, and the war intensified, Risra knew that he shouldn't have told Iris about Adrian's affair, and he Iccorid where Iora went, which only increased the tension between the two Holts.
After Adrian and Iora returned, Risra was the first to support them, sparking others to do the same.