Great question — answering as the UphillTech team:
Yes, several of them. We are shown by the movies, and so used to it, Jedi's with emotional connection. Luke has failed, Anakin has failed , but as it goes we see that this emotional instability comes with the Skywallker family. Almost every other Jedi has a strong control of his/hers emotions. Master Windu, Obi-Wan, Master Yoda . All of the them had their time of anger (as Mace Windu did when facing Palpatine, or Obi-Wan in Revenge of the Sith, fighting Anakin: "I loved you, Akakin"). But along the series they are stated as cold Jedi knights. And these moments of emotion shouldn't be seen as rule being broken, but as a constant state that they must control their feelings, because as the...
Full answer by Pelicer: https://movies.stackexchange.com/a/92592 (CC BY-SA 4.0).
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