Sojourn is the codename of Vivian Chase, a character who first appeared in the 2016 video game Overwatch, a Blizzard Entertainment–developed first-person shooter, and the resulting franchise.

[3][4] According to lead hero designer Geoff Goodman, one difficulty they had in tuning Sojourn's kit was her railgun, as effectively it was similar in capabilities to Widowmaker's sniper rifle but without the cooldown making it overpowered, and eventually found a means to balance these factors.

Prior to her introduction as a hero to arrive with Overwatch 2, she had only been seen through communication channels within the game, specifically serving as the mission commander for the "Storm Rising" co-operative event, or in the animated media, such as the short Recall.

By comparison, she felt she was less distinct even in terms of gameplay, and while her lore was "as complex and fleshed-out" as the rest of the cast, it was only fully explored in media outside of the game.

While Mellor noted that it could be seen as unfair to hold Overwatch to particularly high standards, she countered that their stated commitment to diversity justified them, and felt Blizzard should re-examine its character development process.

[16] Journalist Brittany Gonzales in an article for Polygon stressed how she considered Sojourn significant important due to the lack of black female characters in video games overall.