Leif Sandaas is an American writer and assistant. He served as a production assistant to writer for the entirety of Season 3 before becoming an assistant to writer for all of Season 4 and Season 5. For the entirety of Season 6 and the first twenty-three episodes of Season 7 he served as an assistant to Rob Ulin before becoming an assistant to Eric Gilliland until the end of Season 8.
He wrote five episodes from Season 6 to Season 9, writing the following:
- Season 6
- "Isn't It Romantic?" (teleplay by)
- Season 7
- "All About Rosey - Part 1" (story by)
- "All About Rosey - Part 2" (story by)
- Season 8
- Season 9