Most people aspire to get as close to the top as they can. Kevin Pollak jokes that he only aspires to get to the middle because it’s better than being on either the top or bottom. This is exactly why he’d rather impersonate celebrities than actually be one of them. His impressions are pretty top-notch though and will have you cracking up. Maybe he’ll even do his Christopher Walken or William Shatner impressions. Tonight’s show starts at 8 at Hilarities; shows continue through Sunday. Tickets are $25 to $30. (Liz Trenholme)