https://screenrant.com/star-trek-michelle-forbes-tng-role-before-ro-laren/

Ro Laren shook things up when she joined Star Trek: The Next Generation in season 5, however this was actually Michelle Forbes' second TNG role.

Michelle Forbes’ Best Acting Roles (Including Star Trek: TNG’s Ro Laren) (https://screenrant.com/michelle-forbes-best-acting-roles-star-trek-tng-ro-laren/)

Star Trek: TNG's Ensign Ro was Michelle Forbes' breakthrough role and she went on to appear in some of the biggest TV shows of the past 30 years.