Sonic (IDW)

Sonic is a Decepticon who appears in the IDW portion of the Generation 1 continuity family.

Sonic shares a close link with his brother Boom. This is because they poses a Branched Spark, meaning they could literally die if they are apart to long.

Together, he and his brother form Sonic Boom.

More Than Meets The Eye
Along with Boom, Sonic travels to the Autobot medical facility Delphi, seemingly on the run from the Decepticon Justice Devision.