As a DLR employee I have seen quite a few celebs in the park. Some of the noteables are:
During regular operating hours:
WWE wrestler "The Big Show"
Celebs I've seen while working Private events:
Kobe Bryant - rented out 1/4 of the park and 4 attractions for his, then fiancee's, birthday.
Michael Jackson (2000)- rented the park out after regular hours for himself, a bunch of kids and their families.
The 1999 L.A. Lakers - they really did go to Disneyland after their championship win.
Today, I saw Russel Brand and Sean Astin in the park.
I was using the restroom in Fantasyland near PFF when I went to go wash my hands, I turned to my left and THERE HE IS!! I was like, "WHOA!!" I didn't get star struck like the other guests around that I observed. I didn't go ask for a picture. It was no big deal to me.
Also, Sean Asti was watching the fireworks from the Hub. I wou;dn't of know it until someone I knew told me. After, I went to confirm and it WAS HIM!
Friday the 19th, I saw Cindy Crawford with a plaid and 4 kids (I don't know how many children she has). And on Monday (22nd) I walked passed Donald Faison - gave him a smile and wave - from Scrubs with a few people, I don't know if anyone else in the group was from the show but I definitely recognized him (he's taller than I thought he would be, and very attractive =D)
I saw Shannon Elizabeth and Derrick Hough yesterday, July 9! I pointed them out to my friend and told him who they were in a normal speaking voice. They heard me and looked back to see who had spoken. They were just walking down Main St.
I saw Guy Fieri from food network at Disneyland filming diners, drive-ins, and dives around Christmas time last year. It was the cutest thing cuz he brought his young son and they had to film them walking into the park over and over again. His son kept saying, "Daddy...when do we get to actually go INTO the park?"
I also saw Colin Mockery at DCA when we went before it was officially open to the public.
Tonight I saw Dog the Bounty Hunter over by Fantasmic!
I was walking in one of their "one way" walkways, towards Haunted Mansion, and he was being escorted by a CM in the opposite direction. Maybe not one of the more popular celebs, but it's always nice to see one.