3. The Joker
Harley Quinn’s relationship with The Joker is clearly going to be a major part of Suicide Squad as we learn how he turned Arkham Asylum psychiatrist Harleen Quinzel into the deranged villain we meet in that movie.
Based on what we’ve managed to piece together from the trailers, set photos, and various interviews, their relationship appears to be an abusive one, and that absolutely does not need to be the focus of this spinoff.
However, the Clown Prince of Crime’s presence being felt in some way is no bad thing, especially if it involves Harley further distancing herself from the despicable Batman villain as she looks to stand on her own two feet and possibly even embark on something of a heroic path.
