Questline Companion

At the start of each questline in BaDW the player chooses one of four Companions to accompany them on their duty. The Questline Companions start and end the main questchain of the questline, save for the first and the last one. The choice of one's Companion is purely cosmetic and has no effect on the gameplay.

The Companions can't be chosen if the hero has worse than Friendly reputation with them. The Companions don't attack mobs and they are unattackable. At random they cast Buff on the player.

Each Companion has their unique set of comments and remarks to various situations, each of them voiced. They also have several non voiced lines they say at random and a voiced set of responses if they are being interacted with by the player. Companions, despite each giving the same quests in the questline, comment and present the quests in a different way.

Trivia

 * Even when you choose Corrazzale as your Questline Companion, she still sends you the short poems and haiku in mail.
 * Alliance players can't choose Lyra Spellburn, Martek,and Kajassa as their Quest Companion, due to being unable to raise their reputation with Silvermoon, Orgrimmar, and Darkspear.
 * Horde Players can't choose Falrin Treeshaper, Dominia Vitala, and Xi, due to being unable to raise their reputation with Darnassus, Stormwind, and Tuishi
 * Jeremiah Blackwell, Drizle, Fergus Coldhearth, and Yarzilraku can't be choosen as Questline Companions until the player raises their reputation from Unfriendly (Jeremiah, Drizle, fergus) and Hated (Yarzilraku) to Friendly at least.
 * Scarlet Crusade can be easily done in Tochkeep if you choose to affiliate yourself with the Scarlet Crusade in the quest Two Sides of the Same Coin, started by Exiler Svetlo
 * Cult of the Damned can be easily done in Tochkeep if you choose to affiliate yourself with the Cult of the Damned in the quest Two Sides of the Same Coin, started by Exiler Svetlo
 * Netherwing Reputation is gained by the Netherwing quests in Shadowmoon Valley (Outland), starting them with speaking to Mordenai.
 * Timbermaw Hold reputation is gained by daily quests in Felwood and Winterspring