For nine years, Stephen Colbert has relentlessly maintained his pompous, deeply ridiculous but consistently appealing conservative blowhard character on his late-night show, “The Colbert Report” — so much so that when he puts the character to rest for good on Thursday night, he may have to resort to comicide. The Grim Reaper is his last guest.
Devoted fans of “The Colbert Report” (the final T is silent) have dreaded this day since April 10, when their favorite late-night star announced that he was leaving to become the successor to David Letterman on CBS.