Participant

a.	1.	Sharing; participating; having a share or part.
n.	1.	A participator; a partaker. Participants in their . . . mysterious rites. - Bp. Warburton.

Noun	1.	participant - someone who takes part in an activity
	2.	participant - a person who participates in or is skilled at some game Synonyms: player

a party to, accessory, accomplice, actor, aide, assistant, confrere, contributor, copartner, cotenant, engaged, fellow, helper, implicated, involved, partaker, partaking, participating, participative, participator, participatory, party, prime mover, shareholder, sharer, sharing