He is currently the oldest and longest working member of Building Maintenance and excepting the field of electrical work, is probably the most skilled overall. Rosedale serves as one of the BM's nominal group leaders, along with Denny Robbs, besides being BM's foreman.
It also turns out that besides being been around for a long time in general, Rosedale was one of the earlier human agents to become part of Infrastructure, having been one of the very first humans to take over from the Weeds the maintenance of HQ.
He has a family in World One.
During the Macrovirus Epidemic he helped deploy TARDISes to agents in the field.
- 2008 Mary Sue Invasion, Part 1: "Return to HQ" (RP)
- With the Macrovirus Epidemic over, BM has their work cut out for them.
- Mysterious holes in the wall set two BM crew members at each other's throats.
- "Bidding War"
- In which everyone wants fire-lizards.
- "Daddy's Little Girl"
- Wherein Jonathan deals with the balance between work and family.