Short answer:
Yes
Explanation:
Here’s the card’s printed text:
In order to solve this question, one must simply refer to the METW rulebook:Only playable during the organization phase on a company. There is no limit to the size of this company. Dwarves with a mind of 2 or less in this company do not require influence to be controlled; and there is no limit to how many Dwarves may be brought into play on a given turn with the company. Discard this card if the company has more than one non-Wizard character with a mind greater than 5 or more than two nonDwarf characters or no Dwarf with a mind greater than 5. Cannot be duplicate don a given company.
Normally a player is allowed to do one and only of those things. However, with An Unexpected Party in play, this one-and-only-one limit is negated for non-Dwarf characters. That means that a player can play one non-Dwarf character and any number of Dwarves all in the same turn.During your organization phase, you may perform one and only one of the following activities:
- You may play a character card. You must have enough general influence or direct influence available to control the character. You must place him at his home site or at any Haven site.
- You may play a Wizard card if you do not have one in play. You must place a Wizard at his home site or at Rivendell. You need not control a Wizard with influence-he represents you, the player.