TLDR: Jesse Eisenberg reportedly had personal issues with being closely linked to the Facebook founder and was tired of fans approaching him in public with references from the original film.

Image Source: LAist
Aaron Sorkin Tried to Convince Eisenberg to Reprise the Role
Aaron Sorkin reportedly spent three days trying to convince Jesse Eisenberg to reprise his role as Mark Zuckerberg in The Social Reckoning, the spiritual sequel to 2010’s Oscar-winning The Social Network. Although Sorkin felt the role still belonged to Eisenberg, the actor ultimately decided not to return.
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Eisenberg’s Decision to Stray Away From Mark Zuckerberg
According to Sorkin, Eisenberg no longer wanted to be associated with Zuckerberg. The actor reportedly had personal issues with being closely linked to the Facebook founder and was tired of fans approaching him in public with references from the original film.
Eisenberg had previously shared that after playing a character, there comes a point where an actor feels they have grown into something else. That perspective appears to have influenced his decision to move on from the role.
Jeremy Strong Will Replace Eisenberg as Mark Zuckerberg in The Social Reckoning
Jeremy Strong stepped into the opportunity after speaking with Sorkin at the 2025 Vanity Fair Oscar Party. The Succession star reportedly pitched himself for the role and fully committed to the transformation.
Sorkin noted that Strong had already adopted Zuckerberg’s manner of speaking by the first day of filming, signalling how seriously the actor approached the performance.