As of September 2017, here is everything imdb.com knows about the Titans series.

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Details
Official Sites:  dccomics.com
Country: USA
Language: English
Release Date: 2018 (USA)
Also Known As: Untitled Teen Titans Project 

Company Credits
Production Co: Berlanti Productions, DC Entertainment

Series Writing Credits
Greg Berlanti ... (writer)
Akiva Goldsman ... (writer)
Bryan Edward Hill ... (unknown episodes)
Geoff Johns ... (writer)

Series Cast
Teagan Croft ... Raven
Anna Diop ... Koriand'r
Brenton Thwaites ... Dick Grayson

Series Produced by
Greg Berlanti ... executive producer
Akiva Goldsman ... executive producer
Geoff Johns ... executive producer
Sarah Schechter ... executive producer

Series Casting By
Lyndsey Baldasare ... (unknown episodes)
David Rapaport ... (unknown episodes)

Series Costume Design by
Laura Jean Shannon ... (3 episodes, 2018)

Series Casting Department

Victoria Murphy ... casting assistant (1 episode, 2018)
Tanya Giang ... casting associate (unknown episodes)