Two come to mind -
John Cullum as Oscar Jaffe in ON THE TWENTIETH CENTURY. While his two sidekicks sit inside the speeding train, wondering if Oscar made it in time, we notice him outside the windows, crawling towards them while hanging on for dear life. Finally the "wind" blows his hat off.
Rachel York in CITY OF ANGELS. After film noir detective Stone searches the city for the missing bad girl, he returns to his apartment, where "Surprise!," she pops up in his bed, wearing only a bed sheet and sings "Lost and Found"
Huge musical fan ever since seeing SHENANDOAH at age 8 on B'way, followed by the '76 the revival of FIDDLER with Zero Mostel.
Working on my own Musical Comedy.