What Can My Brother Do In My Wedding

Your brother can do a reading, sing, play an instrument walk down the isle with your mom to light the unity candle, greet guest as they walk in the door and have them sign the guest book and hand them programs, he can be moral support for you, you can have three ushers to seat guests, he can give a special speach at the reception, he can be the errand boy to stay at the house and make sure nothing has been forgotten, honourary best person (take some of the stress off of the bestman and maid of honor.)
There are numerous things he can do at the wedding. You can even dedicate a special song to him at the reception and the two of you can dance together.

Hope this helps.

Can`t he be one of your groomsmen?