I was thinking 1 or 2 years cause in the epi Don, Rigby was 6 and Don could talk pretty good and it seemed to me he was about 5 or 5 1/2. That's my opinion.
posted over a year ago
I agree. He still seemed older than Rigby when Rigby was 6. So Don is probably 1 or 2 years younger.
My guess is about a year...
When it was Rigby's 6th b-day Don looked like he was about 8...but if he's the younger brother I'd have to say he was about 5 years old when Rigby was 6.