I don't know if I can think of a tougher gig on television than being a girl on Supernatural. Things just never seem to go well for any of them. The good news is that the show seems to be acting as a springboard and many of the actresses have been able to land on their feet with good roles.

Adrianne Palicki moved from playing Sam's sweetheart, Jessica, to Friday Night Lights. Alona Tal, who played the controversial Jo, moved right into a regular spot on Cane. It was short lived, but still a nice credit. And now they're joined by Katie Cassidy, the season three demon, Ruby. She's been added to the ever changing cast of Harper's Island. She takes over the role, originally played by Samantha Noble, of the bride whose wedding is the setting for a whole mess of murders. Now, if we can just get someone to hire Nicki Aycox, the sinister Meg.

In a semi-related note, there is a rumor that Cassidy will be joined on the island by her Supernatural co-star, Jim Beaver. I'm already in the bag for this one, if for no other reason than it is doing something different. I am a little bit skeptical about how much CBS is going to have to water down their "slasher series" in order to get it on broadcast TV. But with Christopher Gorham, Katie Cassidy, possibly Jim Beaver, and that creepy little girl from the trailer, I'll certainly tune in to find out. If you haven't seen the trailer yet, CBS has an HD version up at their site.