Adventures of Sonic the Hedgehog. in 1993.
this was the first time for Jaleel White to voice sonic. which is one of his most famous roles to this day. prior to voicing sonic, he played steve urkel in the sitcom Family Matters.
Tails is voiced by the Christopher Stephen Welch.
Dr. Robotnik is voiced by the late Long John Baldry
Scratch is voiced by Phil Hayes.
Grounder is voiced by Garry Chalk. he later voiced robotnik in sonic underground. he also has a surprise cameo in the sonic's 2020 movie as one of the senators.\
and Coconuts is voiced by Ian James Corlett. he is famous for voicing Goku in Ocean's english dub of dragon ball z.
the cartoon also had sonic sez shorts at the end of each episode. where they tell kids some friendly and soft topics like reading, healthy diets, sharing, brushing your teeth, taking care of pets, wearing your seat belt, car safety, and calling 911.
but sonic sez also tackled serious topics. stuff like sexual harassment, respecting the law and courts, alcohol, gun safety, vandalism, peer pressure, false advertising, gangs, and smoking.