How many letters does the top answer for “which doom patrol member was a later addition, first appearing in 1989” have?

The most common answer is crazy (5 letters).

Crossword clue: which doom patrol member was a later addition, first appearing in 1989

2 answers found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

crazy 5 letters otdb

someone deranged and possibly dangerous

jane 4 letters otdb