In the comic books Linda Park is best known as the girlfriend, and later wife, of Wally West, the first Kid Flash, later the third Flash.
Near the start of the show, Cisco's shirt says, "This is my spot," referring to Sheldon Cooper of The Big Bang Theory (2007).
In the TV show 'The Vampire Diaries', Malese Jow's (Linda Park) on-screen mother is played by Kelly Hu, who has appeared in 'Arrow' as the character China White.
Linda Park was originally played by Olivia Cheng in the pilot but is replaced by Melise here. However, given that the two Linda Parks are different types of journalist (sports vs science), it's possible that they are different characters.
The word, yahtzee, that Cisco uses, is also known as a catchphrase of Batman villains Harley Quinn and The Joker; these characters exist in the same universe as The Flash.