List of Two and a Half Men characters

The main cast of Two and a Half Men (season 2), from left to right: Melanie Lynskey as Rose, Conchata Ferrell as Berta, Charlie Sheen as Charlie Harper, Holland Taylor as Evelyn Harper, Angus T. Jones as Jake Harper, Jon Cryer as Alan Harper, and Marin Hinkle as Judith Harper-Melnick

The American sitcom Two and a Half Men, created by Chuck Lorre and Lee Aronsohn, premiered on CBS September 22, 2003. Lorre and Aronsohn are also its executive producers. The show initially centers on seven characters: the brothers Charlie and Alan Harper; Jake Harper, the son of Alan and his first ex-wife; Judith Harper-Melnick, Alan's first ex-wife, Herb's ex-wife, and Jake and Milly's mother; Rose, one of Charlie's previous one-night stands who continuously stalks him; Evelyn Harper, Charlie and Alan's wealthy, five-time widowed, bisexual mother, and Jake's grandmother; and finally Berta, Charlie's sharp-tongued housekeeper, who later joins the main cast starting with season 2 after playing a major recurring role throughout the first season. In season 9, the show is revamped when Charlie is struck and killed by a moving train. Walden Schmidt replaces him as the new owner of the beach house. He is a recently divorced internet billionaire. In season eleven, Jake moves to Japan and leaves the series. To replace "the half-man", Charlie's long-lost-daughter moves into the beach house after looking for her late father.

Over time, several supporting characters have been promoted to starring roles: Berta (recurring in season 1, regular in seasons 2–12), Charlie and Alan's (and later Walden's) sharp-tongued housekeeper; Kandi (recurring in season 3, regular in season 4; guest in seasons 10 and 12), one of Charlie's former one-night stands and later on, Alan's second ex-wife; Chelsea (recurring in season 6, regular in season 7, guest in season 9), Charlie's second most notable love interest (after Rose), and ex-fiancée; Walden Schmidt (seasons 9–12), an internet billionaire who buys Charlie's beach house after his death; Jenny (seasons 11–12), Charlie's illegitimate daughter from a one-night stand twenty years before; finally, Louis (season 12), the 6-year-old boy that Walden decides to adopt. The show also features numerous supporting characters, each of whom plays a prominent role in a small group of episodes.