Big McIntosh has a rather calm and easy-going demeanor in contrast with that of his sister, Applejack. He is a pony of few words and, like the rest of his family, he speaks with a Missouri Ozarks-like accent. He tends to answer questions or reaffirm things with a taciturn "eeeyup" or "nnope". He is hard to agitate, although he scolds the Cutie Mark Crusaders for publishing harmful gossip about Applejack and him in Ponyville Confidential, is quick to agree with Cheerilee's disciplining the scheming Crusaders in Hearts and Hooves Day, and becomes annoyed with Applejack's constant questions in Pinkie Apple Pie. He has a practical sort of wisdom; for example, he advises Applejack against single-handedly harvesting all the apples in Applebuck Season.