Google - how do I delete extra people from my instant messenger. People appeared and don't even use?

1. Open Google Chat in your Web browser.

2. Enter the name of the person you want to remove in the search box located at the top of your chat list to open a new window. Select "Chat" to launch a new dialog box.

3. Click the "Actions" menu and then select "Block" to remove the person from your chat list and block any Google Chat messages from that person. Alternatively, select "Never Show" to remove the person from your Google Chat list but leave it so you can still receive chat invitations from that person.