The phrase "a hidden role" is correct and usable in written English.
It can be used to describe a function or position that is not immediately obvious or is concealed from view.
Example: "In the story, the protagonist discovers a hidden role that changes the course of their journey."
Alternatives: "an undisclosed function" or "a concealed position".
Yet, for better or worse, women have been playing a hidden role in the breakneck development.
Spouses and other romantic partners often complain about feeling unappreciated, and a new study from UC Berkeley suggests poor sleep may play a hidden role.
Not least, India has blamed the Pakistani intelligence services for playing a hidden role in the bombing of the Indian Embassy in Afghanistan last month, a charge that Pakistan vehemently denies.
Players each take a role as a crew member on the ship, and a small portion of players are given a hidden role as an evil Cylon.
Despite fears that Islamic extremists may be playing a hidden role in the rebellion against Moammar Kadafi, the U.S. intelligence community has found no organized presence of Al Qaeda or its allies among the Libyan opposition, American officials say.
Other factors involved in this complex signalling pathway may play a hidden role that explains these non-significant differences in prognosis observed for basal nuclear β-catenin expression.
In fact, pressure from the telecommunications companies on the Bush administration has apparently played a major hidden role in the political battle over the surveillance issue over the past few months.
Touting spots play a huge, hidden role in our everyday London construction.
In their conclusions, Karvonen et al. [4] suggest that in advance of implementing a new driverless metro system a careful thought needs to be given to the ways all hidden roles of a driver will be replaced by a driverless system as a whole, so that no subtask is missed or overestimated.
In a few weeks, though, many of them are likely to get pink slips — along with food safety inspectors, border patrol agents and countless other government employees who play a crucial if hidden role in everyone's lives.
Kellyanne's husband is George T. Conway III, who as a young lawyer played a historic — and largely hidden — role in the impeachment of Bill Clinton.
