Sopespian

Sopespian was a Telmarine lord in the service of King Miraz. During the Narnian Revolution Sopespian plotted with fellow Lords Glozelle and Gergiore to overthrow their king Miraz and take over the kingdom themselves. Their plan worked as they talked Miraz into accepting the challenge to a duel with Peter Pevensie. Sopespian was a Marshal of the Lists for Miraz along with Glozelle, and during the duel Glozelle covertly killed Miraz, blaming it on an illegal technique Peter used and thus convincing the Telmarines to charge the Narnians. The Telmarine Army, led by Sopespian, rushed at the Old Narnians, commencing the Second Battle of Beruna. Immediately, Peter Pevensie cut off Sopespian's legs with his sword and with the back-cut of the same stroke, decapitated him.

In the Disney film version, Sopespian was the one who killed Miraz, stabbing him with an arrow and saying that the Narnians shot him. During the course of the battle that Sopespian instigated, Glozelle was knocked out after hesitating when he had the chance to kill Caspian. Sopespian decided to retreat to the river, where he figured the Telmarine Army would have a decisive advantage over the Narnians, but when they got there, they found Lucy and Aslan waiting for them. Aslan roared and awoke the spirit of the river, who destroyed the main bridge, slaying a good number of Telmarines, and then seemingly consumed Sopespian individually.

In the BBC film, his role is the same as in the book, except it is Glozelle who is killed by Peter, and Sopespian's fate remains unknown, however he is not seen at the end, implying he was killed in the battle.