- 赵信是由 Geeves 设计的。
- 赵信的配音 Michael Bell（迈克尔.贝尔）也配了 Varus.
- Xin Zhao has one of the longest auto attack range out of all the melee champions, tied with 20px Jarvan IV , Wukong, Nautilus and Hecarim.
- In the Chinese version of the game, Xin Zhao's name is rendered as Zhao Xin (赵信), as Chinese names are written with their family name first.
- His name Xin (信) means "Trust" in Chinese.
- "Zhao" in Chinese is a unique character, only usable as a last name.
- He shares the family name of Zhao Yun (赵云), a famous general during the Three Kingdoms Era and a friend of Liu Bei. Like Yun, he uses a spear as weapon.
- He may also be named after Zhao Xin, a Han general.
- Xin Zhao is the only champion that references Asian culture but does not belong to Ionia.
- Xin Zhao's joke is a reference to the question, "What happens when an unstoppable force meets an immovable object?" This in turn is a reference to the Chinese word Maodun, 矛盾 (lit. spear and shield) which means "Contradiction".
- In the French version of the game, Xin Zhao's /joke is different. It is a reference to The Blue Lotus of The Adventures of Tintin comic book series. It refers to when Tintin meets Wang's son for the first time.
- In the German version of the game, Xin Zhao's joke translates to: "Find me an immovable object, so that I can bury you under it!"
- Imperial Xin Zhao is likely a reference to the famed Chinese general Zhao Yun, whom Xin Zhao shares many characteristics with.
- In the Chinese novel, Romance of the Three Kingdoms, Zhao Yun is described as a courageous, loyal, and heroic warrior, depicting him surviving insurmountable odds many times single-handedly.
- Viscero Xin Zhao is a reference to his time as a gladiator fighting in the Noxian arena, The Fleshing.
- Winged Hussar Xin Zhao is a commemorative skin created to celebrate the launch of League of Legend's Polish servers.
- Polish Winged Hussars were a type of cavalry fielded by Poland, and later by the Polish-Lithuanian Commonwealth in the XVI and XVII century. They were famed for their deadly charges.
- The skin was temporarily exclusive to participants in the Polish Closed Beta, but was leaked to the EU and US, forcing them to release it.
- Commando Xin Zhao is a reference to the Imperial Guard of the Warhammer 40,000 series.
- Xin Zhao was saved from Noxian imprisonment by 20px Jarvan IV's grandfather, Jarvan Lightshield the Second.