Jeffrey Alan Winkless (June 2, 1941 – June 26, 2006) was an American film and voice actor and music composer. He was born in Springfield, Massachusetts. Two of his younger brothers, Terence H. Winkless and Daniel Owen Winkless, worked with him on The Banana Splits Adventure Hour. He was also credited as Jeffrey Brock. He did voice-overs for several anime titles including Doomed Megalopolis, Space Adventure Cobra, Vampire Hunter D, Crying Freeman and Lily C.A.T.. Winkless died of a brain tumor on June 26, 2006, 24 days after his 65th birthday. He is survived by his three brothers and his wife Rayonelle Baldwin.