Mr. Triangle Sr.

Mr. Triangle Sr. is the father of Mr. Triangle. He first appeared during a flashback in "There's Three Sides to Every Story", unlike the other Triangles who first appeared during that flashback, Mr. Triangle Sr actually speaks, albeit just for one line. He makes a present day debut in "Unpresidented Fate".
== Appearance ==
Mr. Triangle Sr is a dark red Triangle with a lighter shade of red as an eye, in "There's Three Sides to Every Story" he appears the same as any other triangle would, but in his Season 4 appearance he has been given two light grey sideburns.
== Personality ==
While having a speaking roles, nothing is really clear about his personality.
Category:Characters