Justin Roiland was 24 in Cookie Party when he played the character 'Cookie (voice)'.
That was over 19 years ago in 2005.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 44, and has starred in 16 movies in total, 17 of those since Cookie Party was released.
In Cookie Party, I think Justin Roiland looks: