The prequel Generations Main Characters!
1:Magnus Frost,the father of Ultra Magnus and ruler of cybertron before his son,He is a very high believer in functionist society and every bot having their role,hes cold,cunning,and known for being quite a tyrant,even if he wont admit it himself,most of the scars he earned were not from honorable battles,but rather from his own foolish choices,or protesters against his rein,which started after the 13 original Primes fell in battle against Unicron.
2:Thundercore,megatrons father,and a enslaved mining bot,he originally fought alongside the thirteen Primes themselves and was a bold soldier in the battle against unicron and his heralds. However he was not thanked well for his efforts and was enslaved to work in the mines after Magnus Frost gained power,which infuriated him,however Thundercore does his best not to focus on it and instead raise his son D-16 (who will later become megatron) to have good values and honor,and hopefully stand up for the rights of others.
3:Senator Oynx,is Optimus Primes father,a member of the high council,and a brilliant mech in his own right,he tries to steer cybertron away from the corrupt ways of Magnus Frost and bots who follow him,and is good friends with both Thundercore and Pyroflame,believing cybertron can become better if every bot works together to bring about a better future,and raising Optimus to have the same values,raising him alongside his conjunx and Optimus' mother Codexa,a archivist.
4:Pyroflame,Dreadwing and Skyquakes father,he was originally a high ranking soldier in Magnus Frost's elite gaurd,however after seeing the corruption in high places and being forced to torture one too many protestors,Pyroflame eventually gave up his position,and chose to instead try to live a quiet and peaceful life with his sons and his conjunx Paradox,while also being friends with Senator Oynx and Megathunder,and having high hopes for their children and his own,hoping they will one day overthrow the corrupt magnus,since he and his friends,know they cannot win in a fight against Magnus Frost due to both inexperience and age. (Mostly age in Pyroflames case)
5:Noynx Prime,Sentinel Prime and Elita-1's father,Noynx is completely undeserving of his Prime title,being known for being a two-faced backstabber and being the main enforcer of Magnus Frost's rein,Noynx cares for no-one but himself and securing his childrens place in high ranking cybertron society,hoping Sentinel will become Magnus one day,if he doesnt take the position himself,Noynx is also in charge of all gladiator fights and overseeing mining bots,which causes him and Thundercore to aboustely despise eachother,and Noynx to hate anyone who dares to protect Thundercore and his son,with Senator Oynx being the least favored among the mining bots friends.