Vector Prime (Unicron Trilogy)

Vector Prime is Primus's appointed guardian of time and space. Though recorded history pegs him as 25 million years old, he has identified himself as 9 billion years old,making the clockwork-covered Transformer one of the Thirteen. He's so old that in many timelines, the locals have called him "the First Autobot". Despite his age, Vector Prime is very powerful, and can warp both space and time, though excessive use of this power can severely weaken him. His powers allow him to traverse the multiverse at will, allowing Vector Prime to track and record events across a countless number of realities.

Vector Prime was once a holder of the Matrix of Leadership before he left Cybertron to guard space and time, a lonely job which isolated him from Cybertronian culture for tens of millions of years. Though he has rejoined the timestream on occasion to protect it from large-scale dangers, his extraordinary exile has left him emotionally, culturally, and politically disconnected from his race. He speaks in archaic terminology steeped in chivalry from an age long past, which has led some to believe him to be little more than a doddering relic. Despite this disconnect, Vector Prime never forgets that these strange modern creatures are the reason he guards space and time so fiercely. It is the miracle of time that allows these precious lives to continue and flourish across the multiverse.

Vector Prime has a "Guardian Mini-Con" called Safeguard, and is also responsible for the Recon Mini-Con Team.

I finally understand the true value of time, for it is the bonds between us that give time its meaning. Vector Prime's last words, "Guardian"