Acolyte/Crucifer/Torchbearer
Acolyte(AK-o-lite)(Greek, "follower"). A lay person, usually a child or young adult, who assist ministers in worship services.
www.religionfacts.com/christianity/glossary.htm
A term specifically applied to one who carries a torch or a candle in processions and at other times during the liturgy. This term is also commonly interchanged with server. Originally a minor clerical order but now usually a lay function in the church.
Crucifer a person in a religious procession who bears the cross and who leads the procession into the church.
("cross-bearer"). Acolyte who carries the cross in a church procession before the service. The crucifer is followed by the choir, the acolytes, the lay ministers, and then the clergy in order of rank (highest last).
www.religionfacts.com/christianity/glossary.htm
Torchbearer One that carries a torch.