#2: Michael Keaton in Beetlejuice (1988) — Approx. 17 minutes
Although the title character barely appears for seventeen minutes, Michael Keaton completely transforms Beetlejuice with explosive energy. His unpredictable improvisation, exaggerated body language, and manic delivery immediately shift the film’s tone whenever he enters. The supporting cast spends much of the story reacting to the chaos his character creates, making his influence feel much larger than his actual appearances. Keaton carefully balances comedy with unsettling unpredictability, preventing Beetlejuice from becoming repetitive. Every scene introduces new visual and verbal surprises that keep viewers engaged.

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