Arena Director

The arena director is the person in charge during the pow-wow. Sometimes the arena director is referred to as the whip man, sometimes the whip man is the arena director's assistant, and many pow-wows don't have a whip man. The arena director makes sure dancers are dancing during the pow-wow and that the drum groups know what type of song to sing. If there are contests the arena director is ultimately responsible for providing judges, though he often has another assistant who is the head judge. The arena director is also responsible for organizing any ceremonies that may be required during the pow-wow, such as when an eagle feather is dropped, and others as required. One of the main duties of the arena director is to ensure that the dance arena is treated with the proper respect from visitors to the pow wow.

MC

The master of ceremonies, or MC, is the voice of the pow-wow. It is his job to keep the singers, dancers, and general public informed as to what is happening. The MC sets the schedule of events, and maintains the drum rotation, or order of when each drum group gets to sing. The MC is also responsible for filling any dead air time that may occur during the pow-wow, often with jokes. The MC often runs any raffles or other contests that may happen during the pow-wow.

Head dancers

The head dancers consist of the Head Man Dancer and the Head Woman Dancer, and often Head Teen Dancers, Head Little Boy and Girl Dancers, Head Golden Age Dancers, and a Head Gourd Dancer if the pow-wow has a Gourd Dance. The head dancers lead the other dancers in the grand entry or parade of dancers that opens a pow-wow. In many cases, the head dancers are also responsible for leading the dancers during songs, and often dancers will not enter the arena unless the head dancers are already out dancing.

Drum group

Music for pow-wow dance competition and other activities is provided by a "Drum," a group of performers who play a large, specially designed drum and sing traditional songs. The number of members of a drum group may vary, but is usually at least four people, and can be far more. Some members of the drum group may wear traditional regalia and dance as well as drum, other times drummers simply wear street clothing. Drums usually rotate the duty of providing songs for the dancers, each taking a turn at the direction of the pow-wow management.

Host Drum

The Host Drum of the pow-wow is a drum group primarily responsible for providing music for the dancers to dance to. At an Intertribal pow-wow, two or more drums are hired to be the host drums. In some places there is a Host Northern Drum and a Host Southern Drum. Depending on the size of the pow-wow and the region where it is held, there may be many drums, representing nearly every tribe or community attending the pow-wow. At some pow-wows, the drums are judged on the quality of their performances, with prize money awarded to the winners.

Each drum has a Lead Singer who runs his or her drum and leads the singers while singing. Host drums are responsible for singing the songs at the beginning and end of a pow-wow session, generally a starting song, the grand entry song, a flag song, and a veterans or victory song to start the pow-wow, and a flag song, retreat song and closing song to end the pow-wow. Additionally, if a pow-wow has gourd dancing, the Southern Host Drum is often the drum that sings all the gourd songs, though another drum can perform them. The host drums are often called upon to sing special songs during the pow-wow.

Information from Wikipedia