BEVERLY HILLS, Calif. — Matt Ryan is resuming his role on the short-lived NBC series "Constantine," for an upcoming episode of "Arrow," The CW network announced Tuesday. Both series are a part of the DC Comics universe and were produced by Warner Bros. Television. "Arrow" stars Stephen Amell as Oliver Queen, who moonlights as a hooded hero who uses a bow and arrow to protect his city from villains. Ryan plays John Constantine a former con man-turned supernatural detective. A press release from The CW said Constantine will "provide critical support to Oliver when arrows aren't enough." "Arrow" returns for its fourth season on The CW on Oct.7. — AP