Who was Hazrat Muhammad SallALLAHU Alayhi Wasallam Companions and are there any photos of him and them?

Hazrat Muhammad [SallALLAHU Alayhi Wasallam] had many Companions who were called Sahabi's [May ALLAH be please with them all Aameen]

As for the question regarding photo's that type of technology was not around then and also please note pictures of living creature's [with a soul] is forbidden in Islam

Regarding Muhammad (SallALLAHU Alayhi Wasallam) Companions they were a lot. the most famous of them were, Abu Bakr el sedeek, Omar Bin el Khatab , Othman Bin Afan and Ali Bin Aby Tallib[May ALLAH be please with them all Aameen]