Are all of his siblings dead? If not this should be in present tense (are vs. were).
Colbert children- When reading this you assume that the article means Stephen Colbert's children, not his siblings.
"In interviews, Colbert has described his parents as devout..." would read better as "In interviews, Colbert describes his parents as devout...".
Fourth paragraph about plane crash- This reads rather oddly. I'm not sure if this is a BRITENG or something else. (What is this written in American English? I can't really tell.
Breadth of Coverage: Any thought to having a section of the article listing critics comments on his work? I know his White House Correspondents' Dinner was not well-received. Also, although I personally enjoyed his 2010 Congressional testimony and thought that it was worthy of "C-Span 1", there were a number of critical reviews. Racepacket (talk) 21:20, 12 November 2010 (UTC)[reply]