Traditionally, the second, third and fourth largest parties gets to name one of their members for these offices. There is some disagreement whether the largest party or the leader of the largest party bloc should hold the Speakership. Unlike the Speaker (and cabinet ministers), the deputy speakers are not replaced by an alternate and remain members of the Riksdag with voting rights.
List of deputy speakers
This is a list of deputy speakers of the Riksdag, since it became a unicameral body 1971.