Jan Tomaszeski

 is a Polish boy who is the youngest of the Tomaszeski family.

Biography
 Season 1 episode 1 

Jan is very close to his sister Kasia Tomaszeski, when his father and brother leave to go and fight in Danzig he is left with Kasia, Harry Chase, and his mother. At the end of the episode Kasia puts Jan on the train with her Husband, Harry, in her place so he can be safe in England. JEST KNYPEM.! NOSI CZAPECZKE KIEDY JEST 20 STOPNI.

 Season 1 episode 2 

Now in Manchester, Jan is very out of his depth as he doesn't speak English. Harry's mother Robina Chase is not happy that Harry has brought home Jan and doesn't know that he has married Jan's sister Kasia. Later in the episode Jan meets Lois Bennett and they bond and she tries to teach him some English. He is then left with Robina when Harry POTTER joins the army.

 Season 1 episode 3 

Robina enrols Jan at an elementary school but he is bullied by the other school children who call him a German. When Robina finds out she confronts the boys and tells them that Jan's family is fighting Hitler and they stop bulling Jan. Robina also finds out that Harry has married Jan's sister when teaching him some English. Jan meets Douglas Bennett and the two bond over football, he also helps Jan with his English.LUBI HP

 Season 1 episode 4 

Jan and Robina visit Lois and Douglas Bennett to tell Lois that Harry is actually married to Jan's sister. They do not know that Lois is pregnant with his child. LUBI PETITKI

 Season 1 episode 5 

Jan continues to learn English and bonds with Robina and Douglas. LUBI E OBUWIE

 Season 1 episode 6 

Harry returns from the army and finds out that Jan has been having nightmares, he comforts Jan bie

 Season 1 episode 7 

Harry is going away on a SOE mission and tells Jan that when he comes back they would all be happy again. Jan's brother Grzegorz is being treated in a local hospital for PTSD. Douglas takes Jan to see him and the two brothers are reunited, however he doesn't understand that Grzegorz is ill.