The wakeup calls there are not character. We did have a Costco package. Not sure if you can request a character wakeup.
We didn't do the in-room bday, but we had plenty of bday celebration, so I personally don't think it would be necessary. With the bday pin (which we got when we checked in), DD2 got loads of attention, 3 restaurants brought her a special dessert and sang, and the Grand gave us "signed" pictures, and balloons when we checked in. Also, we had a small staff issue at the Grand -- DH told the desk (we weren't angry, just thought they should know), and then we forgot about it, but they didn't! Cast members came up to our room with two huge balloon bouquets, towel art for DD2 (wrapped in a ribbon w/ her name on it), yet another "signed" picture and two Vinylmation characters. They were very service-oriented and attentive to bdays -- not just at the hotel but at the parks too.