My agents and manager want photos THAT LOOK LIKE ME. That's all they care about. Check out https://www.reproductions.com/east-coast-photographers to see almost every reputable headshot photographer in NYC. If you are just starting out and need pix for college or grad school auditions, or even if you are self submitting yourself, you can have a friend take a photo of you and use that - as long as it is well lit, you are wearing a neutral top and your face can be clearly seen.