Arad, with Nagel and Kennedy, invented action toys for companies such as LJN Toys, Matchbox, Toy Biz, Tyco, Ideal, Ertl, Buddy-L, Schaper, Panosh, CBS Toys, Coleco, Combi, and Galoob Toys. In the 1980s he joined Dietmar Nagel and Mel Kennedy in forming Nagel, Kennedy, Arad (NKA), a toy development company which subsequently, on Nagel's departure, became Arad Kennedy Associates.

Many of Arad’s fantasy concepts for television became successful toy products, including ''Seeker Centipead'', the ''Rev-Um-Up Races'', ''Switch Force'', ''Rough Rider Tri-Ex'' and ''Speed Shooter''. In 1974, he began his own company and started developing situation comedies and action-adventure cartoon programs. Īrad began his career working in the research and development department of Aurora Products, a division of Nabisco. He worked as a truck driver and as a Hebrew teacher to put himself through college, and graduated with a BBA in 1972. In 1970, Arad moved to the United States and enrolled at Hofstra University to study industrial management. Arad finished his military service in 1968. He fought in and was wounded in the 1967 Six-Day War, and spent 15 days recuperating.

In 1965, he was conscripted as a soldier into the Israel Defense Forces (IDF).

The son of Holocaust survivors from Poland, he grew up reading Superman and Spider-Man comics translated into Hebrew. Arad was born in 1948 in Ramat Gan, Mandatory Palestine, to a Jewish family.

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