who is named as the plaintiff in a criminal complaint
Plaintiff A plaintiff (Î  in legal shorthand) is the party who initiates a lawsuit (also known as an action) before a court. By doing so, the plaintiff seeks a legal remedy, and if successful, the court will issue judgment in favor of the plaintiff and make the appropriate court order (e.g., an order for damages). "Plaintiff" is the term used in civil cases in most English-speaking jurisdictions, the notable exception being England and Wales, where a plaintiff has, since the introduction of the Civil Procedure Rules in 1999, been known as a "claimant", but that term also has other meanings. In criminal cases, the prosecutor brings the case against the defendant, but the key complaining party is often called the "complainant".
Lawsuit Lawsuits can become additionally complicated as more parties become involved (see joinder). Within a "single" lawsuit, there can be any number of claims and defenses (all based on numerous laws) between any number of plaintiffs or defendants. Each of these participants can bring any number of cross claims and counterclaims against each other, and even bring additional parties into the suit on either side after it progresses. In reality however, courts typically have some power to sever claims and parties into separate actions if it is more efficient to do so. A court can do this if there is not a sufficient overlap of factual issues between the various associates, separating the issues into different lawsuits.