Jim Beaver has recurred on Supernatural since 2006.

The actor (a very nice guy, as we found out ourselves in an August 2009 interview) has appeared sporadically on The CW series in the beloved role of Bobby Singer.

But might that run soon be coming to an end? How else should we interpret the following Tweet, which Beaver posted after reading the season five finale script?

Supernatural returns with new episodes on March 25. Enjoy every shot you see of Bobby for the rest of the season. Sadly, it's hard to know which might be his last.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.