9-1-1: Lone Star introduces surprising new cast member and fans will recognize him - exclusive

9-1-1: Lone Star's extraordinary casting! Natacha Karam's real-life partner John Clarence Stewart (P-Valley, Zoey's Extraordinary Playlist) will be guest-starring in an upcoming episode of the Fox drama - and sparks may fly! 

These exclusive images show John as a physical therapist hired to help Marjan Marwani (played by Natacha) as she continues to recover from her injuries sustained while on her road trip home to Austin in episode nine. 

Fans saw Marjan return to the 126 after she handed in her notice earlier in the season. The shocking decision came after the firefighter was threatened with legal action from a woman she had rescued in the season four premiere; the victim was now demanding not only a public apology on Marjan's popular Firefox Instagram account, but also financial help. 

Marjan then left Austin for a soul-searching road trip and the show caught up with her several episodes later in New Mexico where she helped a young woman escape her abusive boyfriend. 

As she returned to Austin, however, the man followed Marjan and left her for dead after their cars veered off the road. 

Exclusive: 9-1-1: Lone Star's Julian Works teases upcoming 'crossover' with 9-1-1

Exclusive: 9-1-1's Oliver Stark opens up about vulnerability and why it's okay to cry

Natacha and John began dating some time in 2020, and they went public with their romance in November of that year.

"Right when I least expected it, everything changed. Love is such a powerful and complex thing. Let us all lead with love," she captioned a series of pictures of the pair together on the beach. 

Marjan leaves the 126 team on 9-1-1: Lone Star

"We are very different in our approaches so it can be interesting. John is so insanely talented, what he does he does with such ease," Natacha previously told HELLO! when asked how the actors encourage each other.

"He approaches work with a level of fluency and ability and ease that I encourage myself to copy. John also is not afraid of making a fool of himself and I do not enjoy that. That difference - learning how to shake it off and be free - I have learned from him."

John will appear in episode 12 airing on Tuesday April 11 at 8/7c

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