Distant and estranged, but remains diplomatic both in and out of closed doors. Deep down, he is wary of the enigma of her origins, yet he would jump at a moment's notice if she were to be harmed. It is unheard of for them to have a one on one conversation.
↬ Vector Prime
Cold and aloof. He is exhausted by her unruliness, rarely seen caring for her, if not watching over her slumber in the wee joors of the night. Overall, he doesn't seem to think too hardly on the implications of her future, though he was the most eager for her maturity, as he knew eternal rest would come soon in its wake.
↬ Alpha Trion
Reluctant to even look at her, coming off as oddly remorseful in the little times they are encouraged to interact. It seems as though he has his objections, but little of the mettle to voice them— Or rather, he has far too much conscience. Every forthcoming glyph that he felt compelled to note down was brought on by an overbearing dread, attempting to morph his fears into forbearance with little success.
↬ Solus Prime
Enamored with the idea of her. She has given her and Optimus her full support in spite of the others' reluctance, but fundamentally, she is far too detached from Rigel emotionally to have played a greater part in her upbringing. She watches over her to her best ability, but she places greater concern over Optimus' personal well-being.
↬ Micronus Prime
Similarly to Solus, he has his own positive take on her existence. He was seen frequently interacting with her during her infancy, though they had begun to drift apart throughout her growth. It is without regret, however; he deems himself lucky to have been able to witness her flourish.
↬ Alchemist Prime
Despite his unshakable perplexity, he is most liberative and carefree when it comes to discussions of her betterment. His fears of coming across as unbearing made him sheepishly avoidant, though he makes sure to provide nothing but his absolute best once time calls for her to rely on him for advice or support.
↬ Nexus Prime
He remains overtly guarded, yet she manages to amuse him despite it all. He is much more keen on treating her as a comadre than a ward, which makes them prone to trouble when unsupervised. Such goes for any of his addends, albeit to a much less destructive scale.
↬ Onyx Prime
He is affectionately neutral towards her. He would never complain or deny any responsibilities that came to his servos, but he would not go out of his way to provide for her, either. Yet, he is the first to voice his considerations of her role in any situation that arises, and how it would or would not benefit her.
↬ Amalgamous Prime
In Rigel's words, he is the "favorite uncle." Apart from her own maker, he was the quickest to accept her sincerely for who she was and what she would or wouldn't stand for. Despite the lighthearted nature of their bond, he is frequently seen discussing profound topics in his own digestible way, which is where she adopted the resilience of embracing change.
↬ Quintus Prime
His meek adoration for her has forsaken any equal footing between them. Though he means no ill intent, he treasures her as a wonderous experiment more than a multidimensional being; in result, he comes across as somewhat impersonal and over doting.
↬ Liege Maximo
He resents her and the circumstances she had been forged in that had allocated her freedom, though he had done little to make it known except acting in a way that is disregarding to her safety, excusing his negligence as mere unknowing. He cannot even spare the energy to bear a facetious mask around her.
↬ Megatronus
Even after all this time, no one truly knows what he makes of her. His silence in any regard should have been threatening to Rigel if she was more apt in her vigilance, but his below-par demonstrations of care had accumulated to form a much more positive view of his intentions than what he deserved. Overall, she doesn't know much about him. Neither does he.
↬ Optimus Prime
She is his greatest pride and joy, as she embodies the love and devotion he had so desperately wished to dedicate to Ratchet for the rest of time. He sees so much of his beloved in her, filling him with a saudade that he is forced to replace with fortitude. He fears the day of his departure, but he is confident in her self preservation.
↬ Ratchet
He had absolutely no idea of her existence as he had briefly returned to Earth shortly after Optimus' sacrifice, nor was the possibility of her discussed between them prior. Had he located her at the day of her birth, in the peak of his grief and misery, he couldn't promise to properly care for her as she deserved. Despite the mystery that shrouds him, Rigel loves him unconditionally, and eagerly awaits the day of their reunion, which might have seemed likely had it not been for Ratchet's banishment that had long since been finalized in the later periods of her growth.