Priest

Priests (referred to as Curates in Shadow Dragon) are a class intended mainly for support purposes, only capable of aiding allies with the power of staves. As such, Priests are unable to directly attack, save for their ability to counterattack in Fire Emblem: Radiant Dawn. Throughout almost the entire series, Priests promote into bishop, with some variations such as in Seisen no Keifu and Thracia 776, in which Priests instead promote to High Priests. In some games, female Priests are called Clerics. In Gaiden, it is a female-only class that can also wield swords and fight with Black Magic.

Ankoku Ryū to Hikari no Tsurugi/Shadow Dragon
Note: Lena, Maria, & Elice are Clerics in the Remake.
 * Wrys - A Talysian curate who joins Marth to defend his home from the Galder pirates. He was omitted from Monshō no Nazo, however.
 * Lena - A Medonian priestess running from the Soothsires with Julian in Chapter 3.
 * Maria - The youngest of the royal Medonian siblings who is eventually imprisoned by her own brother, Michalis.
 * Elice - Marth's older sister, and the only one who can wield the ressurrection staff Aum.

Gaiden

 * Cellica - A priest warrior who serves the Goddess Mila. She is the main heroine of her game.

Seisen no Keifu

 * Adean - A young holy woman who was captured by Jamka's brothers.
 * Rana - Daughter of Adean and sister of Lester, she is a very young priestess who is part of Shanan and Celice's Liberation army.
 * Mana - A member of the Liberation army and Rana's replacement.
 * Corpul - Foster child of Hannibal, son of Sylvia, and, unkown by each other, brother to Leen.
 * Sharlow - Corpul's replacement, and brother to Leen's replacement, Laylea.

Thracia 776

 * Safy - A priestess from Tahra sent to find people willing to help against Grandbell's invasion
 * Tina - Safy's sister.
 * Sleuf - A priest who can communicate with the spirit of Claude.

Fūin no Tsurugi

 * Saul - A priest with an important mission from the Elimine Church. Hits on any woman despite vows of chastity.
 * Elen - A young priestess in service as the lady-in-waiting to Guinevere

The Sacred Stones

 * Moulder - A Frelian priest who is well-trusted by King Hayden and is sent to aid Eirika alongside Gilliam and Vanessa.

Path of Radiance

 * Rhys

Radiant Dawn

 * Laura

Kakusei

 * Brady - Mariabel's son from the future.

Promotion
The Priest can promote using a Guiding Ring or Master Seal in Level 10 or more. They can promote to Bishop, they can learn Light Magic and, in Fire Emblem: The Sacred Stones, the Slayer skill. Additionally in The Sacred Stones, they can also promote to a Sage via the branching classes mechanism, and can use Anima Magic, Light Magic and Staves. In Gaiden, being a class near exclusive to Cellica, it promotes further into the Princess class.