Template:Update
From Tardis Wiki, the free Doctor Who reference
Update is for use on articles that require updating. When you place the template on the page, you should leave a note within the template as to what, exactly, needs to be added to the article.
Note that if the article needs major copy-editing or general cleanup, Template:Cleanup is perhaps more appropriate. If it's a Doctor Who universe article with an out-of-universe or non-canonical perspective, you should use Template:Oou.
Usage
Type
{{Update|<reason>}} for example {{Update|The article gives no information about the character's experiences in Big Finish audio plays.}}
at the top of the article requiring attention. Hence:
Categorization
Articles tagged with this template are automatically placed within Category:Articles in need of major additions