Holby City makes Doctor Who reference in John Barrowman and Jo Martin scene

\'Holby City\' paid a sneaky tribute to \'Doctor Who\' as John Barrowman and Jo Martin shared a sweet moment.

The 53-year-old actor - who played Captain Jack Harkness in the sci-fi show and the \'Torchwood\' spin-off - appeared on the hospital drama on Tuesday night (28.07.20) as Drew Nicholson-Heath, and his character got a telling-off from Jo\'s alter ego Max McGerry.

The scene saw locum doctor Drew accused of trying to poach staff for a hospital in Dubai, as Max suggested he was planning to "take something else away" and warned him to keep his "hands off".

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In the nod, John\'s character saluted Max and called her "doctor", in the same way Jack used to address the Time Lord.

John wrote on Twitter: "I\'m so glad you got the #DoctorWho nod Jb (sic)"

As fans will know, Jo played an incarnation of the Doctor in the 12th season of the BBC show.

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The pair even appeared in the same episode - \'Fugitive of the Judoon\' - during the most recent run.

John and Jo recreated the salute in a behind-the-scenes video unveiled by the BBC this week, and the actress was delighted.

She admitted: "I\'m melting - my son is going to die when he sees this."

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Drew joined the hospital as a consultant looking to poach doctors for a large hospital in Dubai, but it seemed he has a history with fellow consultant Ange Godard, who is played by Dawn Steele.

Although John\'s appearance seems to be a one-off, he suggested there could be more plans in the pipeline.

He teased: "Drew Nicholson-Heath, he\'s a good Scotsman. We don\'t know if he\'s gonna be a good guy or a bad guy, but through the grapevine, he might be coming back."