Shelly Hemlock grove

I'm sorry; perhaps I've had a tad too much Chianti, but I'm having an awful time understanding your post. I've checked Criminal Minds , Season 7 Ep 19 http://www.imdb.com/title/tt2342615/c... and looked at the Hemlock Grove page here: http://www.imdb.com/title/tt2309295/c... but am failing to understand who "Shelly" and/or "her" is in this case,

Can you help me out?

Shelly Hemlock grove  She's obviously in Criminal Minds Season 7 episode 19, however it's lists the wrong actress on the Hemlock Grove IMDB page... Under google though, it lists the correct actress.

If I am translating your broken English correctly I believe you are trying to say this:

The girl who plays Shelly on Hemlock Grove is obviously in Criminal Minds season 7 episode 19. However, IMDB lists the wrong actress (Nicole Boivin) on the Hemlock Grove page. When I check google though, it lists the correct actress (Madeleine Martin).

This is really easy to answer and would have been solved by viewing the entire cast list on IMDB.

Let me explain: IMDB is actually correct.

The confusion is this:
The character of Shelley Godfrey has been played by several different actors/actress on the Show Hemlock Grove.

Google is also correct, but showing only limited information. Google displays Madeline Martin as Shelly Godfrey. You can see that Madeleine Martin is in fact credited with both Hemlock Grove and Criminal Minds (season 7 episode 19) on IMDB:
http://www.imdb.com/name/nm1502383/?ref_=ttfc_fc_cl_t23

The full cast list is here: (link is on the right side of the shows main page)
http://www.imdb.com/title/tt2309295/fullcredits?ref_=tt_ql_1

Where you will find the following people have all been credited as playing Shelley Godfrey (or the body of Shelley Godfrey)

Michael Andreae
Nicole Boivin
Madeleine Martin
Erika Ervin

Nicole shows up on the main page instead of Madeleine because she played the part in more episodes. Madeleine Martin is the current Shelly (aside from body shots which are often still Michael Andreae).

I should also note that the first link on google would have found the same information:
http://hemlockgrove.wikia.com/wiki/Shelley_Godfrey

The Hemlock Grove wikia explains which actress is known for the role in each season. Googles summary page (that you were viewing) is just that, a summary and not the final answer to your search for information.