|Theodor & Thomas|
|Other names||Teddy and Tommy, the twins|
|Nationality||The Southern Isles|
|Eye color||Yellowish hazel|
|Allies||Prince Gunnar, King Klaus|
|First appearance||Frozen: The Kingdom of the Sun|
Teddy and Tommy are the best of friends; they are more often recognized as a single entity than two people. Their primary objective, for better or worse, is to have fun and entertain themselves, especially in the form of pranking. Every since childhood, the twins have been infamous throughout their hometown of Solborg for acts of mischief, ranging from simply switching someone's possessions with unpleasant surprises, to creating and setting off ingenious Rube Goldberg-style mechanisms. Neither Teddy nor Tommy show that they care about how negatively their antics effect others; they are only interested in personal amusement.
However, there are slight distinctions in their personalities: Teddy appears to be the more calm and crafty twin, while Tommy is more unruly and has a daredevil streak. It also appears that Teddy, as the elder, is more dominant than his brother.
As identical twins, the princes both have lean and well-built physiques, with freckly fair skin, red hair coiffed into an upward swirl, small goatees, and yellowish hazel, almost golden, eyes.
- Thomas' name fittingly means "Twin."
- Teddy and Tommy take inspiration from Tweedle Dee and Tweedle Dum from Disney's animated adaptation of Alice in Wonderland, as obnoxious twins who enjoy wordplay.
- They are the only Westergaard brothers who share a bedroom.
- The twins were named Laurits and Lukas in early story production.