Whiff is a tank engine. He pulls rubbish trucks usually known to be his job; he has his own garbage dump.
Whiff is based on a tank engine at the National Railway Museum named "Aerolite". Whiff has his basis' same livery and Whiff also carries his basis' number.
- Season 7: Stanley, Whiff, and the Troublesome Dumptrucks
- Season 9: Tender Bender
- Season 11: Big City Rumor, Just Duck's Luck (does not speak) and Trembling Trevor
- Season 12: Greetings, Montague! (cameo), Stafford's Electric Slide, The Importance of Being Billy (cameo) and Bulgy Takes the High Road (cameo)
- Season 13: Bert's Arlesdale Fail
- Season 15: Roundhouse Roulette (does not speak), For Whom The Belle Tolls (cameo), and The Island of Misfit Engines (cameo)
- Season 16: Sweet Sixteen (cameo), Henry's Hill (cameo), Victor and Victoria and Throw Topham from the Train (cameo)
Whiff in the eleventh season.