Do looks matter in a job interview?

It depends on the mentality of the interviewer i think. If he is really in need of good engineer who work die hard for him, he may ignore looks over ability. But in mass recruitment, it matters. But it is really important you go in a decent attire and appearance in an interview.

Looks have a winder meaning as per me. If you are looking neat and tidy then it definitely adds value in a mass recruitment as said above.
If you are attending an interview with certain experience , people look for your knowledge and a normal attire will do. Since each company has it rules, if I am attending an interview by taking a break in office hours then I am expected to wear dress according the dress code of the current company.

Now , looks if you say the hot looking people, I have seen managers recruiting people who are hot 😛

I have seen people who attend interview not to look smart but hot, they definitely has an edge over others if interviewers doesnt have some value , since he is interviewing for his company and he is expected to bring in best talent.. but things are not always black and white!

If the interviewer is of the opposite gender it is a pun that looks are really important

PS: The looks give you more confidence to face the challenge of an Interview So looks are really important

actually looks doesn't matter with me
i have attended to an interview
due to some reasons i was not shaved but they just ignored it
i think looks only matters with mnc's