Brenda and Brandon Walsh were both about 17 in season 2 of Beverly Hills, 90210 , since they were high school juniors during that season.

Quick Scoop

  • Brenda Walsh: about 17.
  • Brandon Walsh: about 17.
  • In show terms, they were written as teenagers, not college-age characters yet.

Note

A few episode details and air dates can make the exact number feel a little fuzzy, but the straightforward answer is that both twins were around 17 throughout season 2.