Oogway is an old (not to say ancient!) Turtle from the Kung Fu Panda series, he is a master of martial arts, he invented Kung Fu! He have huge roles in two film and in one he appears only symbolically.
Kung Fu Panda
Kung Fu Panda 2 (only symbolically)
Kung Fu Panda 3
Besides, he has also been seen in the related short films we have featured it TD, and in animated series and various books – which we are sure to cover in some form in the future.