On 29th January 2018, Shaun Wallace (nicknamed "the Destroyer") made his debut as a temporary Chaser on The Chase Australia. Here are his results during his guest appearances:
| Episode | Air Date | Contestants Through And Prize Fund | Result |
| 5-161 | 29/1/18 | () + $1,500 + $10,000 + $8,000 | 15/15 (0:29) |
| 5-166 | 6/2/18 | () + $14,000 + $3,000 + $8,000 | 19/19 (0:21) |
| 5-169 | 12/2/18 | $18,000 + () + $12,000 + $2,000 | 14/12 ( 3 x $10,666 ) |
| 5-203 | 2/5/18 | $8,000 + () + () + $500 | 7/7 (1:21) |
| 5-214 | 22/5/18 | () + () + $10,000 + $2,500 | 9/9 (0:33) |
| 5-224 | 7/6/18 | $10,000 + () + $8,000 + $8,000 | 9/9 (1:12) |
| 5-231 | 20/6/18 | () + $10,000 + () + () | 13/13 (0:30) |
| 5-244 | 12/7/18 | $10,000 + $8,000 + () + () | 12/12 (0:45) |