Orwen travelled to Rithmere with Joanna to compete in the Rithmere Games. Lief,Barda, and Jasmine overheard them talking about last years games. Joanna assured her husband that they would both make it to finalists this year. He met the companions in the Champion Inn, and explained to them that, once they were registered in the book, they had to compete.
Orwen made it to the preliminary rounds and was paired with Jasmine. She was able to use her agility to dance around him, though it did little to slow him down. However, Orwen spotted Joanna being strangled by Glock in their ring, and rushed to her aid. This resulted in his disqualification.
Orwen's role in the anime is the same as the book. However, his character is made out to be more of a bully to the companions. Also, the preliminary rounds are done one after the other—instead of all at once as was in the book—and on a raised platform. This caused the Joanna and Glock fight to go uninterrupted. Orwen did not attack Glock until it was his turn to fight Jasmine, which was after Lief fought Neridah. As in the book, he is disqualified, though why he would wait until it was his turn to fight is never explained.
Orwen was a competitive person, yet still showed a sense of honour. He explained some of the rules to the companions regarding the games, and wasn't nearly as aggressive to them as others, such as Glock. He also deeply loved his wife, and was willing to get himself disqualified to protect her.