seriocomic

adj

1. Having both serious and comedic qualities or tendencies.

   “Don't Tell Mom the Babysitter's Dead is a seriocomic romp through the summer of a group of teenagers.”

   “He addresses the audience directly and confidentially in an extraordinary 124-line adoxograph which is part social satire and part seriocomic plea for our commitment to his suzerainty […].”

noun

1. (historical)A seriocomic performer; especially, a female variety performer working in seriocomic acting and singing.

   “One day, when Philip had been at the shop for five months, Miss Alice Antonia, the well-known seriocomic, came in and asked to see Mr Sampson.”