Princess Mithian is the princess of Nemeth and a supporting character in Season 4 and 5 of the BBC series Merlin. She was. She was briefly betrothed to Arthur Pendragon before he broke the engagement. She also thinks everyone is equal, no matter what their title and the only princess to show servants, namely Merlin kindness and compassion.
Mithian returned three years later where she was forced to play as a pawn in Morgana's plan to take over Camelot.
Janet Montgomery later portrayed Mary Sibley in Salem, another fantasy series, where she was the one ironically playing a witch instead of being terrorized by one like
In a way, Mithian is similar to Princess Elena:
They are both princesses who were once betrothed to Arthur, married to forge an alliance for their two kindoms.
Both are a pawn in a Villain's plans to take over Camelot (Morgana and the Sidhe Elder).
However, Merlin foils both plans, and on both cases, Arthur breaks his engagement off from them both for his love of Guinevere. In turn, the princesses leave, but bare no ill-will towards Arthur and encourage him to find love with the woman he truly cares for.