Ainz Ooal Gown or Momonga as he was known before, is Pandora's Actor's creator. Pandora's Actor's loyalty to his maker supersedes any loyalty given to the other Supreme Beings. Due to Pandora's Actor's familiarity with his creator, he does not shy away from expressing his own opinions and criticisms towards Ainz's plans and orders, unlike the other NPCs in Nazarick. Later on, Ainz, begins to grow more attached to his creation, finally resulting in acknowledging Pandora's Actor as his own son and allowing Pandora's Actor to call him father, but this special treatment is meant to be kept a secret from the other Floor Guardians.
Albedo had no prior interactions with Pandora's Actor until she visited the Treasury with Ainz. What is known is that she is extremely jealous of Pandora's Actor as he is the only NPC whose creator remained in Nazarick. When he impersonated her creator Tabula Smaragdina, she immediately wanted to kill him for the impudent act.
However as seen,despite her initial jealousy and anger as Pandora's Actor, Albedo now possess a much better view of him due to having asked for him to be part of her secret unit and a possible ally in her scheme to make Ainz the sole ruler of Nazarick. This is likely due to him being completely and utterly loyal to his creator Ainz to the point that he would even battle the other 40 Supreme Beings for his sake alone and thus makes him an ideal candidate in her future plans.
Demiurge said that he cannot help but envy Pandora's Actor, even if just a little for the hard-work Ainz has done as his creator.
When Pandora's Actor saw Yuri Alpha for the first time he called her a young lady. Yuri showed displeasure by being called this because of her pride as a member of the Pleiades.
When Pandora's Actor saw CZ2128 Delta for the first time he called her a young lady. She showed no reaction, only holstering her weapon in her hand. When Pandora's Actor exaggerated saluted Ainz, CZ2128 let out an “uwah”, a sound that deeply hurt Ainz.
It is little known about their relationship, but they currently work together since Pandora's Actor disguises as Momon since the creation of the Sorcerer Kingdom.