Richard Wisker
Richard Wisker( born 1 February 1995) is an English actor, known for his role as Liam O'Donovan in" Tracy Beaker Returns".
From 2013 to 2015 he portrayed Rich in the CBBC series" Dani's Castle".
Wisker also played the role Declan in" Millie Inbetween" and" Flatmates".
Alexandros Margaritis
Alexandros( Alex, Alexander) Margaritis;( born 20 September 1984) is a racing driver who is best known for competing in the German- based Deutsche Tourenwagen Masters touring car championship.
Prior to that, his career had focused on formula single seater racing in Europe.
Margaritis has dual nationality as a result of his place of birth and Greek parentage.
Robert James-Collier
Robert James- Collier( born 1976) is an English actor and model.
He is known for his roles as Thomas Barrow in" Downton Abbey" and as Liam Connor in" Coronation Street".
Gio Calixtro
Giovanni" Gio" Calixtro( born June 27, 2000), is an American soccer player who plays as a forward for Portland Timbers 2.
Adam Gillen
Adam Gillen( born 11 September 1985, Manchester) is a British actor, best known for his role as Liam in the ITV hit series" Benidorm", Brian in the Channel 4 comedy" Fresh Meat" and Gavin in BBC's" Prisoners ’ Wives".
Brandon Jones (actor)
Brandon William Jones( born May 7, 1988) is an American actor, musician, and producer, best known for his role as Liam on" Lie to Me", his portrayal of Andrew Campbell in" Pretty Little Liars", Liam in" The Fosters" and his portrayal of Charlie Russell on.
Josh Hopkins
William Joshua Hopkins( born September 12, 1970) is an American actor and amateur musician.
Hopkins was born in Lexington, Kentucky.
He has participated in many TV series and films.
He is the writer and performer of the song" Feigning Interest", a humoristic music video about dating that went viral in 2007.
In 2015, he starred in the ABC thriller" Quantico" as Liam O'Connor.
Liam Horner
Liam Horner( 26 June 1943 – 13 April 2003) was an Irish Olympic cyclist.
He won the Tour of Ireland in 1972 and competed at the Summer Olympics in 1968 and 1972.
Duncan Pow
Duncan Pow( born 1977) is a Scottish actor who has appeared in many television programmes and films including" Black Mirror The Night ManagerHumans The Wrong MansBrief Encounters" and most recently in" Rogue One: A Star Wars Story".
He is best known for his roles as Liam Mackay in the Sky 1 drama" Dream Team", and as Dr Linden Cullen in the BBC One medical drama series" Holby City".
Mary Proctor
Mary Proctor (1862 – September 11, 1957) was an American popularizer of astronomy.
While not a professional astronomer, Proctor became well known for her books and articles written for the public – particularly her children's fiction.
Despite various claims as being an American, there is a passenger list of about 1924 where she gives nationality as British.

Question: Does Gio Calixtro have the same nationality as Liam Horner?
Answer: no