Syrio Forel
Syrio Forel, the First Sword of Braavos, experiences minimal alterations to his storyline when transitioning from George R. R. Martin's books to the television series. However, the most striking disparity lies in his physical appearance. In the show, actor Miltos Yerolemou's portrayal of Syrio differs significantly from the character's literary description, particularly his beaked nose and bald head.
Arya Stark, who cherishes his memory in both versions, believes he had passed away. While Syrio's presence in both mediums remains fleeting, his fate remains uncertain. Still, the ultimate resolution of his character remains an enigma, adding an element of intrigue and mystery to his legacy.