The Flash has added another player to the mix.

Actor Patrick Sabongui is boarding The CW's proposed Arrow spinoff, The Hollywood Reporter has learned.

He will guest star in the pilot as Central City Police Captain David Singh. If The Flash receives a series order, there is a chance Sabongui's role could be expanded to recurring status.

PHOTO: 'Flash': Grant Gustin's Suit Revealed in First Image From 'Arrow' Spinoff

Flash follows Barry (Grant Gustin), a Central City assistant police forensic investigator who visits Starling City to look into a series of unexplained robberies that may have a connection to a tragedy in his past. Through a freak accident, he is given the power of super speed that transforms him into the fastest man alive.

The cast also includes John Wesley Shipp (aka the original Barry Allen from the '90s series); Tom Cavanagh as physics "rock star" Harrison Wells; Jesse L. Martin as Detective West; Candice Patton as West's daughter and Barry's love interest Iris; Danielle Panabaker as Caitlin Snow, a bioengineering expert; Carlos Valdes as mechanical engineering expert Cisco Ramon; and Rick Cosnett as Detective Eddie Thawne.

Arrow's Greg Berlanti, Andrew Kreisberg and director David Nutter will serve as executive producers on Warner Bros. TV's eyed spinoff. Berlanti, Kreisberg and DC Entertainment's Geoff Johns will write the pilot script, with Nutter directing. Melissa Kellner Berman will serve as co-executive producer.

Sabongui is repped by Red Management. On the TV side, he has appeared in Almost Human, The Tomorrow People, Psych, Fringe and Stargate: Atlantis.

Email: Philiana.Ng@THR.com

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