Host
a host
One AnswerThere is only one person who can give you life and faith his name is God. Another AnswerA person who gives life is called a Parent. A person who gives faith is called a hero.
----party nominee (novanet)----
A person who feels danger and gives warning is typically called an "alarmer" or "alarms someone".
A person who gives unwanted advice is usually called a kibitzer.
He/She is that party's presidential nominee.
a person who has registered to vote but has not joined a party is called an independent voter.
This person is called "gate-crasher" or "party crasher"
Anaesthesiologist
docent
A gatecrasher barges in without an invitation.
If the person is paid for the advice, she/he is a counselor or personal coach. If the person gives unsolicited advice and is not paid, she/he is called a nuisance.