Answered by Rachel, Hiring Expert at Eaton, on Tuesday, August 12, 2014
As much as I truly do enjoy the Star Wars franchise (I’m more an Empire person myself) I have to say that choosing to wear what you must know is considered a children’s costume, outside of cosplay, to an interview was not the best decision as evidence by the response given by your interviewers. Unless you are applying for positions that are centered on Comic-Con, auditioning for work in the movies or theater, and/or working specifically as an extra on the next installment of the Star Wars franchise leave the cloak at home for your next interviews. I would suggest using a smaller item that is more easily accepted and not visible to help as a physical reminder of courage.
It is not about being a “cookie-cutter” employee, but it is about showing a level of professionalism and respect for both yourself and the individuals who have taken the time to speak with you about their company and the opportunities therein. Coming in a costume to an interview instead of in business professional dress shows a lack of respect for both the interviewers and for yourself. I would suggest that you go to your career services office and sign up for some mock interviews and have your resume reviewed until you feel more confident and comfortable participating in an interview, then go back out into the field and interview again.