David Alan Grier, a Tony winner and Grammy-nominated performer, recently spoke candidly about two high-profile roles he chose not to pursue. In a conversation on NBC’s Today with Jenna & Sheinelle, he explained the reasoning behind passing on a part in Ace Ventura: Pet Detective and an audition for Seinfeld. Those choices, he said, came down to how he perceived the material at the time. The interview revisits familiar Hollywood crossroads where instinct, taste and imagination intersect, and it highlights how different readings of a script can produce very different outcomes.
The story is also one about professional relationships and second acts. Before either film or television fate took separate paths, Grier had worked alongside one of the eventual stars on a sketch show: he and Jim Carrey overlapped on In Living Color. Today he headlines St. Denis Medical, a hospital-centered series presented as a mockumentary, which has been renewed for a third season. The remainder of this piece unpacks his reflections on those earlier passings, what he observed in the work of others, and how his current project represents a creative return to a major network.
Passing on Ace Ventura
Grier described the script for Ace Ventura as something that did not speak to him creatively, which is why he turned it down. He judged the screenplay as weak, and in that reading the role offered little to inhabit beyond what was written. Yet the role found life when another performer saw potential in the blank spaces he perceived. Grier’s reaction illustrates a common casting calculus: whether to accept a script as-is or imagine how to expand it. He acknowledged that Jim Carrey saw freedom in the material—an opportunity to invent and transform—where Grier saw constraints.
How reinvention changed a bland script into a breakout
From Grier’s point of view, the success of Ace Ventura rests on performance choices that reconfigured the film’s tone. He suggested that Carrey treated the screenplay as a foundation rather than a ceiling, reshaping character and energy until audiences responded. In industry terms, this is how a project can evolve from a modest script into a box office hit with a lasting cult following. Grier’s reflection is not a criticism of the film’s ultimate popularity but an observation about how different actors bring distinct creative philosophies to the same text.
Turning down Seinfeld
Grier also recounted his experience auditioning for the role of George Costanza on Seinfeld. After reading opposite Jerry Seinfeld, he decided the part—and even the leading voice of the show—did not resonate for him. He candidly admitted he did not foresee the series becoming a cultural phenomenon, noting his initial impression that the material didn’t connect in a way he expected. That misjudgment, he joked, was a classic example of a talent passing on what would become one of television’s most influential sitcoms.
From an audition to a missed fixture of TV history
Ultimately, the role of George went to Jason Alexander, and the program’s trajectory proved far greater than Grier had imagined at the time. The anecdote highlights how unpredictable early readings and chemistry tests can be—what feels flat in a rehearsal can become iconic in production. Grier’s account contains humility and humor: he admits being wrong and frames the episode as part of a broader career shaped by both choices and chance.
Finding a new path with St. Denis Medical
Rather than dwell on what might have been, Grier has continued to build a distinctive body of work. He now leads St. Denis Medical as Ron, a weary but sharp emergency physician in a series that uses the mockumentary style to mine humor from hospital life. The show reunited him with the network that once aired In Living Color, and it has secured multiple seasons, signaling both critical and audience support. Grier’s comments about past decisions are balanced by the satisfaction he expresses in his current role: the work is creatively rewarding and reflects a different kind of career fulfillment than blockbuster fame.