Gillian Jacobs was 37 in Fear Street: 1666 when she played the character 'Adult Ziggy / C. Berman'.
That was over 3 years ago in 2021.
Today she is 41, and has starred in 49 movies in total, 3 of those since Fear Street: 1666 was released.
In Fear Street: 1666, I think Gillian Jacobs looks: