He also embarked on a collaboration with the National Theater Bucharest (TNB), as Joe Keller in Arthur Miller's "All My Sons"—under Caramitru's direction. Theater critic Silvia Dumitrache, who called the show "lively and dynamic, tense and troubling", highlights the fact that Rebengiuc created a "rather positive" portrayal of a negative role, serving to cast "an even more tragic light over the play." Rebengiuc was also the lead in another TNB production, "Legenda Marelui Inchizitor" ("The Legend of the Grand Inquisitor"), adapted by Radu Penciulescu from Fyodor Dostoevsky's eponymous parable. Critic Dan Boicea, who noted that the production relied on Rebengiuc's monologues, also argued: "Rebengiuc does not in any way exaggerate, he is passionate through his gentleness, he is firm in the manner through which he spares his energy [...]. He does not erupt at the moment of climax, although he could have well fallen into this sin."