A bit part or a "walk on" refers to a small role. A supporting actor/actress is generally the second most important part.
Interim Manager
Interim Manager
pretend?
Another word for a small valley is a dell.
Infantilism, childishness, dramatizing
A Gherkin is another name for a small pickled cucumber.
Coronet is another name for a small crown.Tiara is also another word for a small crown.
castings
Kitchen
function
small
another word is plantation(depends on what you are looking for)