Broderick Brown is Cleveland's brother. He used to work as a plastic surgeon in Quahog before joining the Navy. He was shipped off to Afghanistan and, when he heard about Cleveland's problems with the biggest gang in Stoolbend in "Our Gang", he raided a drug ring and brought a sack full of Afghani heroin, the finest heroin in the world, to trade to the gang for Cleveland and Cleveland Jr.
A picture of Broderick appears on the Brown's living room wall in "The Men in Me".
- Evelyn Brown didn't include Broderick when she said that Cleveland was LeVar's only son in "You're the Best Man, Cleveland Brown". This could imply that Broderick's father is someone other than LeVar.