The intro theme is made by Ashley Witt at tenthauser.com. The usual "Mac pundits," as they refer to themselves, are Leo Laporte, Rene Ritchie, Alex Lindsay, and Andy Ihnatko.
The intro music for the show is composed by Ashley Witt, who works at tenthauser.com.  The regular hosts of the podcast, known as "Mac commentators," include Leo Laporte, Rene Ritchie, Alex Lindsay, and Andy Ihnatko.