In Galaxy Quest, what does Alan Rickman mutter on stage after he's introduced at the

[DrFrasierCrane]

beginning of the film? In the movie Galaxy Quest (1999), at the beginning of the movie, Alan Rickman's character is convinced to go make his appearance on stage at the fan convention. After his introduction, as he walks back towards Sigourney Weaver, he mutters something under his breath. Can anyone make out what he's saying?