Run-Dor (ランドル, Randoru) is one of the four possible Summon Beasts in Summon Night: Craft Sword Monogatari Hajimari no Ishi. He is a heavy-duty mechanoid who hails from the mechanical world of Loreilal. His primary magic is thunder.
Run-Dor, being non-human, doesn't comprehend the concept of "a Craftknight's pride" and human emotions, which the protagonist tries to teach him to. He obviously pays extreme respect to Murno, and calls her a "Lady". He also pays respect to Wellman.
- Although Run-Dor is the protagonist's Craftknight partner, he is technically, in fact, Murno's Summon Beast.