The phrase "acted as a shadow" is correct and usable in written English.
It can be used to describe someone or something that follows or supports another closely, often in a way that is not immediately visible or prominent.
Example: "Throughout her career, he acted as a shadow, always providing support and guidance from behind the scenes."
Alternatives: "served as a silent supporter" or "functioned as a hidden presence."
They deny Nick had a stake in the business or that he acted as a "shadow" director.
With his hefty payoff, Ailes scurried to the Trump campaign, where, for a while, he acted as a shadow adviser.
For decades, Ahmar, known as the "sheikh of sheikhs," acted as a shadow President, working with Saleh to pacify tribal leaders.
Park said there were "significant, voidable transactions" Queensland Nickel had made to interests related to the company's sole appointed director, Clive Mensink, and his uncle, Palmer, who, FTI contends, acted as a shadow director.
In a damning report released this week, FTI alleges that Palmer had acted as a shadow director of the company, alongside the sole appointed director, his nephew Clive Mensink.
Scottish-born like Mr. Fox, the 33-year-old Mr. Werritty has worked for several years as a consultant on defense and health issues, the areas in which Mr. Fox acted as a "shadow minister" for the Conservatives before they won power in 2010.
The selected parties will act as a shadow delivery team before a formal organisation is set up to oversee the programme closer to 2020.
Palmer has said he is looking forward to going to court to prove he did not act as a shadow director.
It's parent, Small and Micro also acts as a shadow bank within China, providing lending services as well as money market funds to Chinese consumers.
Several of the carvings remain connected to the knives by a small strip of metal, creating a malleable sculpture that acts as a "shadow" reminiscent of Hongbo's moveable paper sculptures, which we enjoyed in February.
This defect has acted as a natural shadowing block (pre-grown seed), and the threefold symmetry can be clearly observed in this image.
