The priest, of course, the god parents, the parents, the baby getting baptised, other family and that's about it unless you're do it during a regular mass then you have all people in the church.
During the baptism ceremony, the candidate's parents and godparents are present, as well as the priest, but anyone is always welcome at any baptism.
the baptism takes place in a church
No, Buddhism did not teach baptism before Jesus. It is not part of that religion.
No. A baptism is the rite of becoming part of the church by the dipping in or the sprinkling of water. A message is a communication.
Baptism
the baptismal font
Not every church have a second part to a baptism, but in the The Church of Jesus Christ of Latter Day Saints a person is confirmed a member of the church.
One reason for separating confirmation and baptism was to emphasize the distinction between acceptance of faith (baptism) and reaffirmation of one's commitment to the faith (confirmation). This separation allowed individuals to make a conscious decision to affirm their beliefs after gaining more knowledge and maturity.
For Christians it's called: Baptism
Christians take part in baptism and confirmation because it's a part of their religions practices. In their holy book, the Bible, many people read the translation and see that these are commandments from their God they must follow.
It symbolises purification, cleansing, and as baptism is considered cleansing of 'original sin', its a powerful symbol for us to use.
Baptism, Communion.
it is a time when a baby is becoming a part of family with god