Still alive when the documentary begins, Mick is the band's latest drummer—and he can't say he wasn't warned. Marty's interviewing him while he's in the hotel bathtub:
MICK: When I did join, you know, they did ell me, they kind of took me aside and said, "Well, Mick. It's, you know, like this." And it did kind of freak me out a bit. But it can't always happen to every, can it. I mean, really…
MARTY: Because the law of averages…
MICK: The law of averages…
MARTY: Says you will survive.
Mick's hard core; he's all about sex, drugs, and rock and roll. Marty asks him what he'd do if he wasn't in the band:
MICK: As long as there's, you know, sex and drugs, I can do without the rock and roll.
The guy's not complicated.
Fun fact: Mick's name is most likely a mashup between the other Mick (and if you don't know who that is, we're not bothering to tell you) and Jean Shrimpton, a British supermodel who ruled the fashion world in the 1960s. If you were making up fake British names, it doesn't get more British than that. Except maybe Ross McLochness. Oh wait. That's Scottish.