Ty Peter Tennant (né Martin-Moffett; born 27 March 2002) is an English actor. He is known for his roles as Tom Gresham in the science fiction series War of the Worlds (2019–present) and young Aegon II Targaryen in the HBO fantasy series House of the Dragon (2022).
Tennant was born Ty Peter Martin-Moffett at Queen Charlotte's and Chelsea Hospital in the White City area of West London to then 17-year-old actress Georgia Moffett and grew up in Chiswick. When his mother married Scottish actor David Tennant in 2011, whom she had met in 2008, Tennant adopted Ty, who gained Tennant's surname. Tennant attended Arts Educational Schools (ArtsEd) for Sixth Form.
Tennant had a brief cameo in the 2013 comedy spoof The Five(ish) Doctors Reboot. He later made his feature film debut in 2019 as a younger version of Tom Glynn-Carney's Christopher Wiseman in Tolkien. That same year, he began starring in the science fiction series War of the Worlds as Tom Gresham, the younger brother of Daisy Edgar-Jones' character Emily. He also made a guest appearance in an episode of the BBC One soap opera Casualty.

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