What makes Friar Lawrence important throughout the play Romeo and Juliet, espically in act 3, scene 3 ?

is s advisor, but he is also
important to the action of the play.  He is the one who increases the suspense by marryingand by
allowingto fake her death.

Romeo clearly trusts Friar
Lawrence.  He is his advisor and supporter.  He moves the action along by marrying Romeo and
Juliet in secret.  He does this because he thinks they will act anyway, and because he thinks
that marrying the two might end the feud between their families.

In one respect I'll thy assistant be;

For this alliance may so happy
prove

To turn your households rancour to pure love. (Act 2, Scene 3, p.
47)

By making this choice, Friar Lawrence unknowingly
sets off a chain of events that does accomplish his goal, but also causes disaster for his young
friend.

Friar Lawrence also agrees to help Juliet fake her death so she does
not have to marry .  Romeo knows nothing about this plan, and Friar Lawrences inability to get
the message to Romeo leads to both young peoples deaths.

I
married them; €¦

You, to remove that siege of grief from her,

Betroth'd and would have married her perforce

To County Paris. (Act
5, Scene 3, p. 114)

Lawrence had a small part to play,
but in realty his actions caused the suspense and drama.  If he had not married them, and if he
had not helped Juliet fake her death (or if he had gotten his message through), thewould not
have unfolded as it did.