People present that a face-recognizer like Merrin should easily identify:
The hospital's Fat-Tailed-Risk+One-Responsible-Person (chief of financial risk management), who is glowering at the hospital's central financial viewscreen; while getting a shoulder massage from one of the hospital's more ambitious sex workers, who's trying not to look like she's plotting any sudden career moves.
The actual CEO of the hospital.
Villar the on-duty Personnel.
The off-duty Personnel who just goes by Personnel, looking rather sleepy.
Others present in the room, who may be identifiable if Merrin watches enough news, or if Merrin is at an angle to read the large nametags clearly showing name/title/affiliation because this is serious business and nobody has time to try to remember that stuff:
The second-rank Keeper who was understudy if Merrin suddenly fell over during her first few hours. She's wearing medical scrubs rather than standard Keeper-wear, but still bears a rank insignia in her hair.
The fourth-rank Keeper who would have taken over if Merrin had faltered during later hours and before shift handoff. Ditto on medical scrubs, rank insignia as circlet.
A very-long-serving Representative who sometimes concerns herself with Exception Handling and with Civilization's operations excellence generally. It's widely acknowledged by everyone including herself that she chose the wrong career track and should have gone to work for the Bureaucracy directly, but the executive branch of government is forbidden to hire anyone who's ever been in politics for obvious reasons so too late now.
The grandmother-gendertroped woman who originally spotted a body in an icy river. She's here out of curiosity, out of compassion, and of course because her final bounty is going to depend on the final outcome. She's already sold most of her expected gains as a bond, outcome variance here being very high; but Civilization's generally good financial practices mean that almost nobody will buy an entire risk from anyone. It's suspicious when somebody wants to end up with zero skin in the game they're selling you.
An information-security expert from Exception Handling, to be the one person present whose job it is to keep track of all the secrecy and related practices.
One actual soldier / military police; there's enough concentrated value in this room that Civilization will actually bother to defend it against the very remote case that some criminal decides to make a move or somebody suddenly goes insane. The fourth-rank Keeper would be a more powerful military factor, if it came to sudden conflict, but it's not his one job nor his comparative advantage.
Standout figures among the viewscreens:
Someone wearing an insignia recognizable as belonging to the Fourth Legislator of Civilization. Her brightly sparkling hat of many-colored sequins marks her as probably the Legislator's Chief of Staff.
A dark, shadowy silhouette with a broad-brimmed hat, seated before a dark-gray monolith with red glowing letters reading "03".
A man dressed only in a bathrobe, colored in the solid purple shade of a Chronicler of History, bearing a dispassionately skeptical expression beneath massive purple-dyed eyebrows; his listening-ears have been done up as fluffy cat ears of the highest quality.
To be clear, this should all strike you as perfectly normal if you grew up in dath ilan, because high-ranking people are just like that. They haven't come all this way to not be themselves.