Vatnsdal, Caelum (4 January 2011). "Udo Kier | Film". The A.V. Club. Retrieved 7 October 2012.
behindthevoiceactors.com
"Udo Kier (visual voices guide)". Behind The Voice Actors. Retrieved 4 October 2023. A green check mark indicates that a role has been confirmed using a screenshot (or collage of screenshots) of a title's list of voice actors and their respective characters found in its credits or other reliable sources of information.