MASH* ran for eleven seasons and produced one of the most watched television finales in American history — 106 million people tuning in on February 28, 1983 to say goodbye to the 4077th in a moment that remains the single most culturally significant ending in the history of the medium. But the finale was only the last exit in a series of departures that reshaped the show across its run, each one leaving a hole that the writers and the remaining cast filled with remarkable creativity and that the audience, for all its loyalty, never quite stopped feeling. The real reasons those actors walked away are more complicated, more human, and more revealing about the particular pressures of sustaining a television institution across more than a decade than the official accounts have ever fully captured.

Wayne Rogers, who played Trapper John McIntyre through the first three seasons, left because the show’s creative direction was concentrating more and more power and more and more screen time in Alan Alda’s Hawkeye at the direct expense of Trapper’s role — a professional frustration that Rogers, who had not signed a morals clause in his contract and used that leverage to simply not return, was characteristically direct about in the years that followed. McLean Stevenson’s departure as Colonel Henry Blake was driven by a combination of his belief that he could build a bigger solo career outside the show’s enormous shadow and a contract dispute that left both sides bruised — a gamble that the industry watched with interest and that history recorded with the particular honesty it reserves for bets that do not pay off. Gary Burghoff, the only cast member to carry his role from the original film, stayed longer than almost anyone expected given the toll that playing Corporal Radar O’Reilly was taking on him personally — the character’s childlike vulnerability requiring an emotional openness that Burghoff found increasingly difficult to sustain across years of a production schedule that left little room for the man inside the performance to recover between takes. Mike Farrell, who replaced Rogers as B.J. Hunnicutt and stayed through the finale, has spoken about the creative tension and the political passion th