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'The Fosters' casts Katherine McNamara, others for season 3

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Rich Polk/Getty Images

ABC Family’s The Fosters has cast a few up-and-coming actors in recurring roles for its third season, including Katherine McNamara, Keean Johnson, and Tom Williamson, EW has confirmed.

McNamara (Maze Runner) will be playing Kat, an attractive and strongly ambitious piano prodigy who Brandon (David Lambert) meets while at Idyllwild; Johnson (Nashville) has been cast as Tom, a high-strung but extremely talented musical composer who Brandon befriends; and Williamson (The Goldbergs, Switched at Birth) will portray AJ, a runaway who bonds with Callie (Maia Mitchell) at the drop-in center, Variety reported.

The Fosters was renewed for a third season in January.