Question: In the genre of Kanniyin Kaddhali, characters usually appear what? 

Context paragraphs:
Surname stroke order: The surname stroke order () is a system for the collation of Chinese surnames.  It arose as an impartial method of categorization of the order in which names appear in official documentation or in ceremonial procedure without any line of hierarchy.  In official setting, the number of strokes in a person's surname determines where a name should be placed and the list order.  Surnames "Ding" and "Wang" (written simply in the Chinese language with two and four strokes, respectively, "丁", "王") for example, are simple surnames that usually appear on the front of lists, while surnames such as "Dai" and "Wei" ("戴", "魏", both written with 17 strokes) often appear on the bottom of lists.

Tooltip: The tooltip or infotip or a hint is a common graphical user interface element.  It is used in conjunction with a cursor, usually a pointer.  The user hovers the pointer over an item, without clicking it, and a tooltip may appear—a small "hover box" with information about the item being hovered over.  Tooltips do not usually appear on mobile operating systems, because there is no cursor (though tooltips may be displayed when using a mouse).

Eruptive vellus hair cyst: Eruptive vellus hair cysts (or EVHC) are small lesions that occur most often in the chest wall, abdomen and extremities, often with a crusted surface.  EVHC may occur randomly, or it can be inherited as an autosomal dominant trait.  The condition affects males and females equally, and sporadic cases usually appear at 4–18 years of age.  The cysts appear similar clinically to steatocystoma multiplex, as well as acneiform eruptions and milia.  Therapeutic techniques that are safe and effective are rare, with incision and drainage being the primary form of treatment when sporadic regression does not occur.

Educational advertisement: Educational advertisements are ad campaigns in which the creators attempt to inform, update, or persuade the public to engage in or avoid current issues.  This type of advertisement is often negatively associated with propaganda.  While similar to public service announcements, educational advertisements often cross into commercial fields whereas public service announcements are oriented on strict non-profit basis.  Educational advertisements focus on a number of modern social, political, religious, and consumer-based issues.  They traditionally appear on television and radio, but more and more campaigns are turning to the internet, especially email, as a cheap and efficient way to spread their messages.  While most educational advertisements are deployed in the United States of America, there have been campaigns across Europe, Canada, and New Zealand.  However, due to the dependence on technology to broadcast their messages, campaigns usually appear in developed countries where the largest possible population is likely to encounter their message.

Villain of the week: "Villain of the week" (or, depending on genre, "monster of the week", "freak of the week" or "alien of the week") is an antagonist that only appears on one episode of a work of fiction.  A villain of the week is commonly seen in American and Japanese genre-based television series.  As many shows of this type air episodes weekly at a rate of ten to twenty new episodes per year, there is often a new antagonist in the plot of each week's episode.  The main characters usually confront and vanquish these characters, often leaving them never to be seen again (as in "Charmed", "Smallville" and "Scooby-Doo").  Some series alternate between using such antagonists and furthering the series' ongoing plotlines (as in "Buffy the Vampire Slayer", "Supernatural", "Fringe" and "The X-Files", where fandom is often divided over preference for one type of episode versus the other), while others use these one-time foes as pawns of the recurring adversaries (as in "Kamen Rider", "Sailor Moon", "Super Sentai" and their American equivalent, "Power Rangers").  On other occasions, these villains return reformed, becoming invaluable allies or gaining a larger role in the story.  The American action drama "Burn Notice" focuses on short-lived antagonists, but the final portion of every episode is committed to developing a larger story arc.  The British sci-fi programme "Torchwood" used this format in its first two series, before switching to a continuous story format.

Parasitic gap: In the study of syntax, a parasitic gap is a construction in which one "gap" appears to be dependent on another "gap", that is, the one gap can appear only by virtue of the appearance of the other gap, hence the former is said to be "parasitic" on the latter, e.g. "Which explanation did you reject __ without first really considering __?"  While parasitic gaps are present in English and some related Germanic languages, e.g. Swedish, their appearance is much more restricted in other, closely related languages, e.g. German and the Romance languages.  An aspect of parasitic gaps that makes them particularly mysterious is the fact they usually appear inside islands to extraction.  Although the study of parasitic gaps began in the late 1970s, no consensus has yet been reached about the best analysis.

Sunspot: Sunspots are temporary phenomena on the Sun's photosphere that appear as spots darker than the surrounding areas.  They are regions of reduced surface temperature caused by concentrations of magnetic field flux that inhibit convection.  Sunspots usually appear in pairs of opposite magnetic polarity.  Their number varies according to the approximately 11-year solar cycle.

Pleural plaque: Pleural plaques are indicators of asbestos exposure, and the most common asbestos-induced lesion.  They usually appear after 20 years or more of exposure and never degenerate into mesothelioma.  They appear as fibrous plaques on the parietal pleura, usually on both sides, and at the posterior and inferior part of the chest wall as well as the diaphragm.

Melodrama: A melodrama is a dramatic or literary work in which the plot, which is typically sensational and designed to appeal strongly to the emotions, takes precedence over detailed characterization.  Characters are often simply drawn, and may appear stereotyped.

Kanniyin Kaadhali: Kanniyin Kaadhali (English: "The Maiden's Lover") is a 1949 Tamil romantic comedy - Melodrama film was directed by K. Ramnoth and A. K. Sekhar and produced by K. Ramnoth under Jupiter Pictures.  The film dialogue were written by S. D. Sundaram and Screenplays by K. Ramnoth respectively.  Music by S. M. Subbaiah Naidu and C. R. Subburaman assets to the film and Lyrics were written by Kannadasan was debut his break in this film.  It stars Madhuri Devi (played both Male and Female role) and Anjali Devi played lead with S. A. Natarajan, N. S. Krishnan, T. A. Mathuram and K. Sarangapani played pivotal role and dance by Lalitha - Padmini.  The film was adaption of English Comedy classic play "Twelfth Night" as William Shakespeare.

Supporting paragraphs: Kanniyin Kaadhali Melodrama
Answer: stereotyped.