Yeah, there's a mime act comes out 15 mins before each show, whether it's Clyde & Seamore take Pirate Island, or Sea Lion's Tonite. He spends the time joking with the crowd and teasing folk as they come in. One of the real assets of Seaworld, IMHO.
The Take Pirate Island" show was becoming a bit stale, so it will be interesting to see what they replace it with. I just hope they don't take it too seriously, as the comedy in that show is a really refreshing change from the "conservation, conservation, conservation" message in the other shows.