An ideal butler provides service without being asked
Information
Edwin Jarvis was the butler and trusted ally of Howard Stark, and helped Peggy Carter in her mission of clearing his master's name when Johann Fennhoff attempted to convince the SSR Stark was guilty of treason. Gaining a thirst for adventure as a result, Jarvis volunteered to assist Agent Carter once again when Whitney Frost threatened the world due to being consumed with Darkforce: However, when his beloved wife was almost killed by Frost, Jarvis was forced to reevaluate his future. He served as a support figure during the childhood of Tony Stark
Headcanons
(I only have three cause I suck at these XD but I'll probably add more when I think of some! If you have suggestions feel free to comment some!)
I. Jarvis likes to keep a swear jar on stand by. One reason being cause Howard swears too much. Reason two being is cause he knows how much it annoys Howard and he needs a few laughs every now and then!
II. Jarvis and Peggy like to do martial arts every morning before breakfast. Even though Peggy would never admit it she has learned quite a bit off of him and uses those techniques when out in the field.
III. Due to Howard's love of flamingos, Jarvis is always the one to look after them. So whenever Tony used to come visit he'd always see Jarvis trying to wrangle up a few flamingos here and there.