He has written for TV, film, and is a longtime writer for Mad Magazine.
Among his hundreds of Mad bylines, Kogen has written more than 100 film or television parodies.
He wrote for many of the top stand-up comics of that time including Don Adams, Morty Gunty, and Jan Murray.
In 1965 he co-wrote the feature film Birds Do It, starring Soupy Sales.
Kogen has written comedy material for many entertainers including Steve and Eydie, Totie Fields, Flip Wilson, Jackie Vernon, Sammy Davis Jr., Debbie Reynolds, Connie Stevens and Shelley Berman.