French Agency Castor & Pollux Embeds a Dedicated Creator to Run Brands' TikTok
French agency Castor & Pollux has launched 'Fellow', placing a recruited creator inside an advertiser's team to own its TikTok long-term — with Engie the first public test.
The offering
French agency Castor & Pollux has unveiled "Fellow", a model that recruits a creator to become embedded within a brand's team, creating, hosting and managing its TikTok account long-term. Creators are sourced through the agency's "Talents" placement division. The offering was unveiled on 7 September 2026.
The first public test case is Engie, whose @engieofficiel account launched in February 2026 and now has more than 20,000 followers. Content spans renewables education, consumption advice, employer branding and trend formats — the account behaving less like a corporate channel and more like a creator's.
From campaigns to an always-on face
This formalises a shift that has been building for two years: from one-off influencer campaigns to an always-on "brand creator" who is effectively staff. The pay-off is consistency and native credibility — a recognisable human presence that platform algorithms and audiences both reward, rather than a stream of disconnected paid posts.
Our read: it is a smart response to how TikTok actually works, where consistency and personality beat polish. But the model's biggest strength — a single recognisable face — is also its single point of failure. Tie a brand's social identity to one person and you inherit their availability, their reputation and their eventual departure.
What brands should lock down first
First, get the contracts right before the content starts. Image rights, exclusivity, content ownership and — critically — account continuity if the creator leaves must be settled up front, or the brand risks losing its own channel's face and following overnight.
Second, decide how much brand control you can tolerate. The credibility of an embedded creator comes precisely from their autonomy; over-manage them and you get a stilted corporate account with a person's name on it. The brands that win here will treat the creator as trusted talent, not a costumed spokesperson — while planning, from day one, for the day they move on.
Quick FAQ
What is Castor & Pollux's 'Fellow' offering?
A model that embeds a recruited creator inside a brand's team to create, host and manage its TikTok account long-term, unveiled on 7 September 2026.
Who was the first test case?
Engie, whose @engieofficiel TikTok launched in February 2026 and has passed 20,000 followers.
What's the main risk?
Tying a brand's social identity to one person creates dependency — so image rights, exclusivity, content ownership and account continuity must be locked down up front.
An embedded 'brand creator' is a genuinely smart answer to how TikTok rewards consistency and personality. But the strength — one recognisable human face — is also the risk. Sign the image-rights, exclusivity and account-continuity clauses before the first video, because the day that creator leaves is the day you find out who owns the following. — Daniel Nikolla, Founder of Merx Marketing
An always-on embedded creator beats one-off influencer posts on TikTok — but only if you lock down image rights, ownership and account continuity before day one.
If the creator running your brand's TikTok walked tomorrow, would you keep the account, the content and the following?
If you would like to know more about this topic, please contact us on danieln@merxmarketing.co.uk
Sources: Influencia, Influenth.
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Written by Daniel Nikolla, Founder of Merx Marketing Ltd and Marketing Minute
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