2 Toy Story Characters in Monsters, Inc. and Finding Nemo

In Monsters Inc., 

there's Jessie the Cowgirl Doll in Boo's Bedroom 

when Sulley put Boo in her Bedroom 

before she showed him some of her Toys. 

In Finding Nemo, 

there's Buzz Lightyear at the Dentist's Office. 

I think Jessie and Buzz Lightyear were from 

Toy Story Movie Series 

and they can be Cameos in Monsters, Inc. and Finding Nemo.