@captain-savvy so, Frederick is the youngest of his side of the Trevelyan family. Because he's the youngest, although his parents still made sure he got the same education of his other 3 siblings, he had a bit more free reign than the eldest. He spent quite a bit of time practicing archery growing up, which is his preferred weapon although he can also duel (since Noble houses love to duel every time honor is questioned). He appears calm and suave, but he definitely has a bit of a partier side to him (you know that comment Josephine will make to a human Inquisitor about your Great-Aunt Lucille's parties and never seeing your Inquisitor at them? Frederick gets a fourth option in my headcanon, because although he isn't very fond of all the formalities, he definitely loves a good party). He's very quick to make decisions without thinking them through, more likely to ACTUALLY slide down the side of a giant hillside to cut travel time in half and scare everyone in his party by doing so, except for Sera. Solas is infinitely frustrated by him, not because he's rude to him or anything like that, but because he's so reckless when he's the only one who can utilize the Anchor. Frederick is Andrastian, and believes he is the Herald of Andraste even after the events of Here Lies the Abyss (he believes in a larger picture that the Maker works with rather than Andraste literally handing the Anchor to him). Even so, he doesn't let the Chantry's politics get in the way of if he approves of non-Andrastians, or especially in the case of Dorian's being Andrastian but having the Black Divine in Tevinter. He tends to choose Cullen's suggestions at the War Table more than the others (using Leliana for more investigative issues and Josephine to deal with the Nobles. Unless they're feuding, in which case, why not send in a bunch of soldiers to get the job done?). He also ends up gaining the support of the templars rather than the mages, not because he doesn't support mages but rather since he believes the Templars will have a better chance of helping him seal the Breach since suppressing magic is what they do. At the Battle for Haven, Cassandra keeps having to yell at him to focus because he won't stop flirting at and showing off for Dorian because he's all heart-eyes the moment that gate is opened.
