Nigel is a pelican who appears in Finding Nemo.
He was friends with the Tank Gang, and also met Nemo after he ended up joining them (due to being taken from his habitat by the dentist). However, he is usually driven out by the dentist shortly thereafter. He later told Nemo about Marlin's attempt to find Nemo after hearing it from his pelican friends, which gave Nemo a new drive at sabotaging the filter.
He eventually met Dory and Marlin when they ended up nearly being eaten by his friend Gerald, and after discovering who they were, he attempts to explain that he knows Nemo, but they attempted to flee as they weren't willing to be eaten by him. He helps Dory and Marlin escape certain death by the Seagulls, and brings them to the dentist's office. When he, Marlin and Dory think Nemo is dead, Nigel takes them to a nearby buoy, puts Dory and Marlin back into the water, and leaves with the line "I'm so sorry. Truly, I am."
Nigel appears as a large puppet in Finding Nemo: The Musical and in the promotion for the Finding Nemo Submarine Voyage, appeared as an animatronic attached to the Sub Bus and introduced Crush for a traveling version of Turtle Talk with Crush.